Selection bias: neighbourhood controls and controls selected from those presenting to a Health Unit in a case control study of efficacy of BCG revaccination

✍ Scribed by Odimariles MS Dantas; Ricardo AA Ximenes; Maria de Fatima PM de Albuquerque; Ulisses R Montarroyos; Wayner V de Souza; Patrícia Varejão; Laura C Rodrigues

• Book ID: 115008774
• Publisher: BioMed Central
• Year: 2007
• Tongue: English
• Weight: 238 KB
• Volume: 7
• Category: Article
• ISSN: 1471-2288
• DOI: 10.1186/1471-2288-7-11