Published in Clinical Oncology Week, April 4th, 2005
"Evaluation of cancer screening using case-control studies is less valid in comparison to randomized controlled trials, due to the intrusion of a possible self-selection bias in the former. The randomized controlled trial approach, however, may be difficult in developed countries where mass cancer screening programs are already being performed nationally. Accordingly, case-control studies are often performed instead of randomized controlled trials," reported K.J. Suzuki and colleagues of Hirosaki University.
"In case-control studies, no reports could...
Want to see the full article?
Welcome to NewsRx!
Learn more about a six-week, no-risk free trial of Clinical Oncology Week