Perusing the literature: comparison of MEDLINE searching with a perinatal trials database
Controlled Clinical Trials (1985) - Comments
pubmed: 3907973  issn: 0197-2456  doi: 10.1016/0197-2456(85)90106-0 

Kay Dickersin, Peg Hewitt, Lesley Mutch, Iain Chalmers, Thomas C. Chalmers