TI  - Randomized trials in orthopaedics: why, how, and when?
PT  - JOUR
DP  - 1989
TA  - The Journal of Bone & Joint Surgery
PG  - 535-543
VI  - 71
IP  - 4
AID  -  [doi]
4100  - http://dx.doi.org/
SO  - The Journal of Bone & Joint Surgery April 1, 1989 71(4):535