Authors: Rob Pieters, Martin Schrappe, Paola De Lorenzo, Ian Hann, Giulio Rossi, Marı́a Sara Felice, Liisa Hovi, Thierry Leblanc, Tomasz Szczepański, A Ferster, Gritta Janka, Jeffrey E. Rubnitz, Lewis B. Silverman, Jan Starý, Myriam Campbell, Chi Kong Li, Georg Mann, Ram Suppiah, Andrea Biondi, Ajay Vora, Maria Grazia Valsecchi - The Lancet 2007 cited by 653