AU  - Castillo, Renan C.
AU  - Scharfstein, Daniel O.
AU  - MacKenzie, Ellen J.
TI  - Observational Studies in the Era of Randomized TrialsFinding the Balance
PT  - JOUR
DP  - 2012
TA  - The Journal of Bone & Joint Surgery
PG  - 112-117
VI  - 94
IP  - Suppl 1(E)
AID  - 10.2106/JBJS.L.00242 [doi]
4100  - http://dx.doi.org/10.2106/JBJS.L.00242
SO  - The Journal of Bone & Joint Surgery July 18, 2012 94(Suppl 1(E)):112