Carl E Clarke

Active 1987–2024

Also published as
Carl E. Clarke
72
Papers
17,907
Citations
64
h-index
71
i10-index

Citations

Citations per year for Carl E Clarke1963: 1 citations1987: 1 citations1989: 10 citations1990: 12 citations1991: 16 citations1992: 8 citations1993: 8 citations1994: 14 citations1995: 23 citations1996: 17 citations1997: 25 citations1998: 21 citations1999: 11 citations2000: 38 citations2001: 34 citations2002: 56 citations2003: 54 citations2004: 62 citations2005: 65 citations2006: 73 citations2007: 53 citations2008: 89 citations2009: 63 citations2010: 69 citations2011: 97 citations2012: 106 citations2013: 139 citations2014: 163 citations2015: 172 citations2016: 166 citations2017: 148 citations2018: 161 citations2019: 546 citations2020: 687 citations2021: 717 citations2022: 535 citations2023: 456 citations2024: 696 citations2025: 290 citations2026: 2 citations1964–1986: no citations, so these years are not shown1988: no citations, so this year is not shown

Citation sources

Countries

World map of the countries and regions citing this authorUnited States: 1,869 citing papers, 19.2% of this breakdownUnited Kingdom: 1,113 citing papers, 11.4% of this breakdownGermany: 666 citing papers, 6.8% of this breakdownChina: 651 citing papers, 6.7% of this breakdownItaly: 605 citing papers, 6.2% of this breakdownCanada: 466 citing papers, 4.8% of this breakdownFrance: 376 citing papers, 3.9% of this breakdownSpain: 356 citing papers, 3.7% of this breakdownAustralia: 318 citing papers, 3.3% of this breakdownNetherlands: 303 citing papers, 3.1% of this breakdownSweden: 218 citing papers, 2.2% of this breakdownJapan: 188 citing papers, 1.9% of this breakdown
0%19.2%Other 26.8%

Fields

  • Medicine70.4%
  • Biochemistry, Genetics and Molecular Biology11.1%
  • Neuroscience9.9%
  • Health Professions5.6%
  • Psychology0.7%
  • Pharmacology, Toxicology and Pharmaceutics0.3%
  • Other2%

Topics

  • Parkinson's Disease Mechanisms and Treatments21.5%
  • Neurological disorders and treatments9.9%
  • Balance, Gait, and Falls Prevention3.4%
  • Parkinson's Disease and Spinal Disorders2.5%
  • Nuclear Receptors and Signaling2.2%
  • Lysosomal Storage Disorders Research2%
  • Other58.5%

Coauthors

All papers

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  1. Identification of novel risk loci, causal insights, and heritable risk for Parkinson's disease: a meta-analysis of genome-wide association studies

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Lisa M. Shulman, Margaret Sutherland, Pentti J. Tienari, Kari Majamaa, Mathias Toft, Ole A. Andreassen, Tushar Bangale, Alexis Brice, Jian Yang, Ziv Gan‐Or, Thomas Gasser, Peter Heutink, Joshua Shulman, Nicholas Wood, David A. Hinds, John Hardy, Huw R Morris, Jacob Gratten, Peter M. Visscher, Robert Graham, Andrew B Singleton, Astrid Adarmes‐Gómez, Miquel Aguilar, Akbota Aitkulova, Vadim Akhmetzhanov, Roy N. Alcalay, Ignacio Álvarez, Victoria Álvarez, Sara Bandrés‐Ciga, Francisco Javier Barrero, Jesús Alberto Bergareche Yarza, Inmaculada Bernal‐Bernal, Kimberley J. Billingsley, Cornelis Blauwendraat, Marta Blazquez, Marta Bonilla‐Toribio, Juan A. Botía, María Teresa Boungiorno, José Brás, Alexis Brice, Kathrin Brockmann, Vivien J. Bubb, Dolores Buiza‐Rueda, Anna Maria Novella Càmara, Fátima Carrillo, Mario Carrión‐Claro, Debora Cerdan, Viorica Chelban, Jordi Clarimón, Carl E Clarke, Yaroslau Compta, Mark Cookson, Jean‐Christophe Corvol, David W. Craig, Fabrice Danjou, Mónica Díez-Fairén, Oriol Dols‐Icardo, J. Duarte, Raquel Durán, Francisco Escamilla‐Sevilla, Valentina Escott‐Price, Mario Ezquerra, Faraz Faghri, Cici Feliz, Manel Fernández, Rubén Fernández‐Santiago, Steven Finkbeiner, Thomas Foltynie, Ziv Gan‐Or, Ciara García and 170 more - The Lancet Neurology 2019 cited by 2,541

  2. Systematic review of levodopa dose equivalency reporting in Parkinson's disease

    Authors: , , , , , - Movement Disorders 2010 cited by 4,220

  3. Finding genetically-supported drug targets for Parkinson’s disease using Mendelian randomization of the druggable genome

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Nigel Williams, Karen Morrison, Carl E Clarke, Kirsten Harvey, Benjamin M. Jacobs, Alexis Brice, Fabrice Danjou, Suzanne Lesage, Jean‐Christophe Corvol, María Martínez, Claudia Schulte, Kathrin Brockmann, Javier Simón‐Sánchez, Peter Heutink, Patrizia Rizzu, Manu Sharma, Thomas Gasser, Susanne A. Schneider, Mark Cookson, Cornelis Blauwendraat, David W. Craig, Kimberley J. Billingsley, Mary B. Makarious, Derek P. Narendra, Faraz Faghri, J. Raphael Gibbs, Dena Hernández, Kendall Van Keuren‐Jensen, Joshua Shulman, Hirotaka Iwaki, Hampton L. Leonard, Mike A. Nalls, Laurie Robak, José Brás, Rita Guerreiro, Steven Lubbe, Timothy Troycoco, Steven Finkbeiner, Niccolò E. Mencacci, Codrin Lungu, Andrew Singleton, Sonja W. Scholz, Xylena Reed, Ryan J. Uitti, Owen A. Ross, Francis P. Grenn, Anni Moore, Roy N. Alcalay, Zbigniew K. Wszołek, Ziv Gan‐Or, Guy A. Rouleau, Lynne Krohn, Kheireddin Mufti, Jacobus J. van Hilten, Johan Marinus, Astrid D. Adarmes-Gómez, Miquel Aguilar, Ignacio Álvarez, Victoria Álvarez, Francisco Javier Barrero, Jesús Alberto Bergareche Yarza, Inmaculada Bernal‐Bernal, Marta Blázquez Estrada, Marta Bonilla‐Toribio, Juan A. Botía, María Teresa Boungiorno, Dolores Buiza‐Rueda, Ana Cámara, Fátima Carrillo, Mario Carrión‐Claro and 75 more - Nature Communications 2021 cited by 214

  4. Excessive burden of lysosomal storage disorder gene variants in Parkinson’s disease

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Kathrin Brockmann, Janet Brooks, David J. Burn, Elisa Majounie, Gavin Charlesworth, Codrin Lungu, Honglei Chen, Patrick F. Chinnery, Sean Chong, Carl E Clarke, Mark Cookson, Jonathan M. Cooper, Jean‐Christophe Corvol, Carl Counsell, Philippe Damier, Jean‐François Dartigues, Panos Deloukas, Günther Deuschl, David T. Dexter, Karin D. van Dijk, Allissa Dillman, F. Durif, Alexandra Dürr, Sarah Edkins, Jonathan Evans, Thomas Foltynie, Jing Dong, Michelle Gardner, J. Raphael Gibbs, Alison Goate, Emma Gray, Rita Guerreiro, Clare Harris, Jacobus J. van Hilten, Albert Hofman, Albert R. Hollenbeck, Janice L. Holton, Michele Hu, Xuemei Huang, Isabel Wurster, Walter Mätzler, Gavin Hudson, Sarah Hunt, Johanna Huttenlocher, Thomas Illig, Pálmi V. Jónsson, Jean‐Charles Lambert, Cordelia Langford, Andrew J. Lees, Peter Lichtner, Patricia Limousin, Grisel Lopez, Delia Lorenz, Codrin Lungu, Alisdair McNeill, Catriona Moorby, Matthew Moore, Huw R. Morris, Karen Morrison, Valentina Escott‐Price, Ese Mudanohwo, Sean S. O’Sullivan, Justin Pearson, Joel S. Perlmutter, Hjörvar Pétursson, Pierre Pollak, Bart Post, Simon Potter, Bernard Ravina, Tamás Révész and 40 more - Brain 2017 cited by 451

  5. Initiation of pharmacological therapy in Parkinson's disease: when, why, and how

    Authors: , , , , - The Lancet Neurology 2020 cited by 203

  6. Genome-wide Association and Meta-analysis of Age at Onset in Parkinson Disease

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Marie‐Christine Chartier‐Harlin, Eugénie Mutez, Kathrin Brockmann, Angela Deutschländer, G. Hadjigeorgiou, Efthimos Dardiotis, Leonidas Stefanis, Athina Maria Simitsi, Enza Maria Valente, Simona Petrucci, Letizia Straniero, Anna Zecchinelli, Gianni Pezzoli, Laura Brighina, Carlo Ferrarese, Grazia Annesi, Andrea Quattrone, Monica Gagliardi, Lena F. Burbulla, Hirotaka Matsuo, Yusuke Kawamura, Nobutaka Hattori, Kenya Nishioka, Sun Ju Chung, Yun Joong Kim, Lukas Pavelka, Bart P.C. van de Warrenburg, Bastiaan R. Bloem, Andrew Singleton, Jan Aasly, Mathias Toft, Leonor Correia Guedes, Joaquim J. Ferreira, Soraya Bardien, Jonathan Carr, Eduardo Tolosa, Mario Ezquerra, Pau Pástor, Mónica Díez-Fairén, Karin Wirdefeldt, Nancy L. Pedersen, Caroline Ran, Andrea Carmine Belin, Andreas Puschmann, Clara Hellberg, Carl E Clarke, Karen Morrison, Dimitri Krainc, Matthew J. Farrer, Rejko Krüger, Alexis Elbaz, Thomas Gasser, Manu Sharma - Neurology 2022 cited by 71

  7. Identification of sixteen novel candidate genes for late onset Parkinson’s disease

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Lea R’Bibo, Claudia Manzoni, Mie Rizig, Mina Ryten, Sebastian Guelfi, Valentina Escott‐Price, Viorica Chelban, Thomas Foltynie, Nigel Williams, Karen Morrison, Carl E Clarke, Alexis Brice, Fabrice Danjou, Suzanne Lesage, Jean‐Christophe Corvol, María Martínez, Claudia Schulte, Kathrin Brockmann, Javier Simón‐Sánchez, Peter Heutink, Patrizia Rizzu, Manu Sharma, Thomas Gasser, Mark Cookson, Sara Bandrés‐Ciga, Cornelis Blauwendraat, David W. Craig, Derek P. Narendra, Faraz Faghri, J. Raphael Gibbs, Dena Hernández, Kendall Van Keuren‐Jensen, Joshua Shulman, Hirotaka Iwaki, Hampton L. Leonard, Mike A. Nalls, Laurie Robak, José Brás, Rita Guerreiro, Steven Lubbe, Steven Finkbeiner, Niccolò E. Mencacci, Codrin Lungu, Andrew Singleton, Sonja W. Scholz, Xylena Reed, Roy N. Alcalay, Ziv Gan‐Or, Guy A. Rouleau, Lynne Krohn, Lynne Krohn, Jacobus J. van Hilten, Johan Marinus, Astrid Adarmes‐Gómez, Miquel Aguilar, Ignacio Álvarez, Victoria Álvarez, Francisco Javier Barrero, Jesús Alberto Bergareche Yarza, Inmaculada Bernal‐Bernal, Marta Blazquez, Marta Bonilla‐Toribio, Juan A. Botía, María Teresa Boungiorno, Dolores Buiza‐Rueda, Fátima Carrillo, Mario Carrión‐Claro, Debora Cerdan, Jordi Clarimón, Yaroslau Compta and 79 more - Molecular Neurodegeneration 2021 cited by 89

  8. A Five-Year Study of the Incidence of Dyskinesia in Patients with Early Parkinson's Disease Who Were Treated with Ropinirole or Levodopa

    Authors: , , , , , - New England Journal of Medicine 2000 cited by 1,535

  9. Low energy diet and intracranial pressure in women with idiopathic intracranial hypertension: prospective cohort study

    Authors: , , , , , , , , , , , , - BMJ 2010 cited by 353

  10. Physiotherapy versus placebo or no intervention in Parkinson's disease

    Authors: , , , , , , , , , , - Cochrane Database of Systematic Reviews 2013 cited by 446

  11. Mendelian Randomisation Study of Smoking, Alcohol, and Coffee Drinking in Relation to Parkinson’s Disease

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Leonidas Stefanis, Athina Maria Simitsi, Enza Maria Valente, Simona Petrucci, Stefano Duga, Letizia Straniero, Anna Zecchinelli, Gianni Pezzoli, Laura Brighina, Carlo Ferrarese, Grazia Annesi, Andrea Quattrone, Monica Gagliardi, Hirotaka Matsuo, Yusuke Kawamura, Nobutaka Hattori, Kenya Nishioka, Sun Ju Chung, Yun Joong Kim, Pierre Kolber, Bart P. van de Warrenburg, Bastiaan R. Bloem, Jan Aasly, Mathias Toft, Lasse Pihlstrøm, Leonor Correia Guedes, Joaquim J. Ferreira, Soraya Bardien, Jonathan Carr, Eduardo Tolosa, Mario Ezquerra, Pau Pástor, Mónica Díez-Fairén, Karin Wirdefeldt, Nancy L. Pedersen, Caroline Ran, Andrea Carmine Belin, Andreas Puschmann, Clara Hellberg, Carl E Clarke, Karen Morrison, Manuela Tan, Dimitri Krainc, Lena F. Burbulla, Matthew J. Farrer, Rejko Krüger, Thomas Gasser, Manu Sharma, Alexis Elbaz - Journal of Parkinson s Disease 2021 cited by 80

  12. Long-term Effectiveness of Adjuvant Treatment With Catechol-O-Methyltransferase or Monoamine Oxidase B Inhibitors Compared With Dopamine Agonists Among Patients With Parkinson Disease Uncontrolled by Levodopa Therapy

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Colin Baugent, Peter Crome, Pui Au, Thomas Boodell, Versha Cheed, Jane Daniels, Francis Dowling, Lorraine Evans, R J Hawker, Surinder Kaur, Caroline Rick, Keith Wheatley, Neil Winkles, David Hingley, Lauren Sturdy, Rebecca Wooley, Ryan Ottridge, Lisa Peto, Nicholas Hilken, Carl Counsell, Linda Caie, Robert Caslake, R. Coleman, Patrick M. Crowley, Linda M. Gerrie, Joanna Gordon, Clare Harris, V. Leslie, M. A. Macleod, Kate Taylor, Paul Worth, Roger A. Barker, Duncan R. Forsyth, M. Halls, John Young, Wendy Phillips, Mark Manford, N. Thangarajah, Debbie Blake, Richard Prescott, P. Carr, Lindy Cochrane, Angela Rose, Andrew McLaren, M. Drover, P. Mahinda Karunaratne, Amanda Eady, Magdalena Wislocka-Kryjak, Naveed Ghaus, A. Grueger, B. Mallinson, G. Wihl, S Ballantyne, Sharon Hutchinson, Alistair Lewthwaite, David Nicholl, Alistair Ritch, Sharon Coyle, R. W. Hornabrook, Hanan Irfan, S. Poxon, Uma Nath, James Davison, Sally Dodds, Gina Robinson, Carol Gray, Peter Fletcher, Philip Morrow, M. Sliva, Edmund Folkes and 226 more - JAMA Neurology 2021 cited by 60

  13. Botulinum toxins for the prevention of migraine in adults

    Authors: , , , , , , , - Cochrane Database of Systematic Reviews 2018 cited by 126

  14. Clinical effectiveness and cost-effectiveness of physiotherapy and occupational therapy versus no therapy in mild to moderate Parkinson’s disease: a large pragmatic randomised controlled trial (PD REHAB)

    Authors: , , , , , , , , , , , - Health Technology Assessment 2016 cited by 107

  15. Cochrane systematic review and meta-analysis of botulinum toxin for the prevention of migraine

    Authors: , , , , , , , - BMJ Open 2019 cited by 140

  16. Dairy Intake and Parkinson's Disease: A Mendelian Randomization Study

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Leonidas Stefanis, Athina Maria Simitsi, Enza Maria Valente, Simona Petrucci, Stefano Duga, Letizia Straniero, Anna Zecchinelli, Gianni Pezzoli, Laura Brighina, Carlo Ferrarese, Grazia Annesi, Andrea Quattrone, Monica Gagliardi, Hirotaka Matsuo, Yusuke Kawamura, Nobutaka Hattori, Kenya Nishioka, Sun Ju Chung, Yun Joong Kim, Pierre Kolber, Bart P.C. van de Warrenburg, Bastiaan R. Bloem, Jan Aasly, Mathias Toft, Lasse Pihlstrøm, Leonor Correia Guedes, Joaquim J. Ferreira, Soraya Bardien, Jonathan Carr, Eduardo Tolosa, Mario Ezquerra, Pau Pastor, Monica Diez‐Fairen, Karin Wirdefeldt, Nancy L. Pedersen, Caroline Ran, Andrea C. Belin, Andreas Puschmann, Clara Hellberg, Carl E. Clarke, Karen E. Morrison, Manuela Tan, Dimitri Krainc, Lena F. Burbulla, Matt J. Farrer, Rejko Krüger, Thomas Gasser, Manu Sharma, Alexis Elbaz - Movement Disorders 2022 cited by 45

  17. Physiotherapy for Parkinson's disease: a comparison of techniques

    Authors: , , , , , , , , , , - Cochrane Database of Systematic Reviews 2014 cited by 228

  18. Systematic Review and UK‐Based Study of PARK2 (parkin), PINK1, PARK7 (DJ‐1) and LRRK2 in early‐onset Parkinson's disease

    Authors: , , , , , , , , , , , , , , , , , , , , , - Movement Disorders 2012 cited by 170

  19. Unbiased screen for interactors of leucine-rich repeat kinase 2 supports a common pathway for sporadic and familial Parkinson disease

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Suzanne Lesage, Sigurlaug Sveinbjörnsdóttir, Sampath Arepalli, Roger A. Barker, Yoav Ben‐Shlomo, Henk W. Berendse, Daniela Berg, Kailash P. Bhatia, Rob M.A. de Bie, Alessandro Biffi, Bas Bloem, Zoltán Bochdanovits, Michael von Bonin, José Brás, Kathrin Brockmann, Janet Brooks, David J. Burn, Gavin Charlesworth, Honglei Chen, Sean Chong, Carl E Clarke, Mark Cookson, Jonathan M. Cooper, Jean‐Christophe Corvol, Carl Counsell, Philippe Damier, Jean‐François Dartigues, Panos Deloukas, Günther Deuschl, David T. Dexter, Karin D. van Dijk, Allissa Dillman, F. Durif, Alexandra Dürr, Sarah Edkins, Jonathan Evans, Thomas Foltynie, Jianjun Gao, Michelle Gardner, J. Raphael Gibbs, Alison Goate, Emma Gray, Rita Guerreiro, Ómar Gústafsson, Clare Harris, Jacobus J. van Hilten, Albert Hofman, Albert R. Hollenbeck, Janice L. Holton, Michele Hu, Xuemei Huang, Heiko Huber, Gavin Hudson, Sarah Hunt, Johanna Huttenlocher, Thomas Illig, Helmholtz Zentrum München, Pálmi V. Jónsson, Jean‐Charles Lambert, Cordelia Langford, Andrew J. Lees, Peter Lichtner, Helmholtz Zentrum München, Patricia Limousin, Grisel Lopez, Delia Lorenz, Alisdair McNeill, Catriona Moorby, M. Elyse Moore, Huw R. Morris and 67 more - National Academy of Sciences, Proceedings of the National Academy of Sciences 2014 cited by 367

  20. The Genetic Architecture of Parkinson Disease in Spain: Characterizing Population‐Specific Risk, Differential Haplotype Structures, and Providing Etiologic Insight

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Jaime Kulisevsky, Juan Marín‐Lahoz, Javier Pagonabarraga, Berta Pascual‐Sedano, Mario Ezquerra, Anna Maria Novella Càmara, Yaroslau Compta, Manel Fernández, Rubén Fernández‐Santiago, Esteban Muñoz, Eduard Tolosa, Francesc Valldeoriola, Isabel González Aramburu, A Rodríguez, María Sierra, Manuel Menéndez‐González, Marta Blázquez Estrada, Ciara García, Esther Suarez‐San Martin, Pedro Ruiz, Juan Carlos Martínez‐Castrillo, Lydia Vela, Clara Ruz, Francisco Javier Barrero, Francisco Escamilla‐Sevilla, Adolfo Mínguez‐Castellanos, Debora Cerdan, César Tabernero, María José Gómez Heredia, Francisco Pérez Errazquin, Manolo Romero‐Acebal, Cici Feliz, José Luis López-Sendón, Marina Mata, Irene Martínez‐Torres, Jonggeol Jeffrey Kim, Clifton L. Dalgard, Janet Brooks, Sara Sáez-Atiénzar, J. Raphael Gibbs, Rafael Jorda, Juan A. Botía, Luis Bonet‐Ponce, Karen Morrison, Carl E Clarke, Manuela Tan, Huw R. Morris, Connor Edsall, Dena Hernández, Javier Simón‐Sánchez, Mike A. Nalls, Sonja W. Scholz, Adriano Jiménez‐Escrig, J. Duarte, Francisco Vives, Raquel Durán, Janet Hoenicka, Victoria Álvarez, Jon Infante, Marı́a José Martı́, Jordi Clarimón, Adolfo López de Munain, Pau Pástor, Pablo Mir, Andrew Singleton - Movement Disorders 2019 cited by 71

  21. Rating papilloedema: an evaluation of the Frisén classification in idiopathic intracranial hypertension

    Authors: , , , , , , , , , , - Journal of Neurology 2012 cited by 99

  22. Investigation of Shared Genetic Risk Factors Between Parkinson's Disease and Cancers

    Authors: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Alexander Zimprich, Walter Pirker, Ekaterina Rogaeva, Anthony E. Lang, Sulev Kõks, Pille Taba, Suzanne Lesage, Alexis Brice, Jean‐Christophe Corvol, Marie‐Christine Chartier‐Harlin, Eugénie Mutez, Kathrin Brockmann, Angela Deutschländer, G. Hadjigeorgiou, Efthimios Dardiotis, Leonidas Stefanis, Athina Maria Simitsi, Enza Maria Valente, Simona Petrucci, Letizia Straniero, Anna Zecchinelli, Gianni Pezzoli, Laura Brighina, Carlo Ferrarese, Grazia Annesi, Andrea Quattrone, Monica Gagliardi, Hirotaka Matsuo, Akiyoshi Nakayama, Nobutaka Hattori, Kenya Nishioka, Sun Ju Chung, Yun Joong Kim, Pierre Kolber, Bart P.C. van de Warrenburg, Bastiaan R. Bloem, Jan Aasly, Mathias Toft, Lasse Pihlstrøm, Leonor Correia Guedes, Joaquim J. Ferreira, Soraya Bardien, Jonathan Carr, Eduardo Tolosa, Mario Ezquerra, Pau Pástor, Mónica Díez-Fairén, Karin Wirdefeldt, Nancy L. Pedersen, Caroline Ran, Andrea Carmine Belin, Andreas Puschmann, Emil Ygland, Carl E Clarke, Karen Morrison, Manuela Tan, Dimitri Krainc, Lena F. Burbulla, Matthew J. Farrer, Rejko Krüger, Thomas Gasser, Manu Sharma, Thérèse Truong, Alexis Elbaz - Movement Disorders 2023 cited by 27

  23. Physiotherapy intervention in Parkinson's disease: systematic review and meta-analysis

    Authors: , , , , , , , , , , - BMJ 2012 cited by 342

  24. Amantadine in Parkinson's disease

    Authors: , , - Cochrane Database of Systematic Reviews 2003 cited by 143