Results 1 to 10 of about 20 (18)
Some of the next articles are maybe not open access.
American Cancer Society Nutrition and Physical Activity Guideline for Cancer Survivors
Ca-A Cancer Journal for Clinicians, 2022Colleen K Spees +2 more
exaly
When Are Observational Studies as Credible as Randomised Trials?
Lancet, The, 2004Jan Vandenbroucke
exaly
A Comparison of Observational Studies and Randomized, Controlled Trials
New England Journal of Medicine, 2000Arthur J Hartz, A J Hartz
exaly
Observational Studies for Intervention Assessment
Lancet, The, 2001Ivan J Perry, Harry Comber
exaly +2 more sources
Improving Observational Studies in the Era of Big Data
Lancet, The, 2018Jennifer Gill, Vinay Prasad
exaly

