Daily sunscreen application and betacarotene supplementation in prevention of basal-cell and squamous-cell carcinomas of the skin: a randomised controlled trial

著者: Adèle C. Green, Gail Williams, Rachel Ε. Neale, Veronica Hart, David Leslie, Peter G. Parsons, Geoffrey C. Marks, Philip T. Gaffney, Diana Battistutta, Christine Frost, Carolyn A. Lang, Anne Russell - The Lancet 1999 被引用: 979