Observational Studies in the Era of Randomized Trials
Castillo, Renan C., Scharfstein, Daniel O., MacKenzie, Ellen J.Volume:
94
Language:
english
Journal:
The Journal of Bone and Joint Surgery (American)
DOI:
10.2106/jbjs.l.00242
Date:
July, 2012
File:
PDF, 485 KB
english, 2012