AU  - Dickersin K, Rennie D
TI  - THe evolution of trial registries and their use to assess the clinical trial enterprise
PT  - JOUR
DP  - 2012
TA  - JAMA
pages = {1861-1864},
VI  - 307
IP  - 17
AID  - 10.1001/jama.2012.4230 [doi]
4100  - http://dx.doi.org/10.1001/jama.2012.4230
SO  - JAMA May 2, 2012 307(17):1861