An international survey to identify unpublished and ongoing perinatal trials: Jini Hetherington The Project on Publication Bias in Clinical Trials, National Perinatal Epidemiology Unit, Radcliffe Infirmary, Oxford, England, Johns Hopkins School of Public Health and Harvard School of Public Health(23)

• Book ID: 119143489
• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 70 KB
• Volume: 8
• Category: Article
• ISSN: 0197-2456
• DOI: 10.1016/0197-2456(87)90072-9