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Pragmatic controlled clinical trials in primary care: the struggle between external and internal validity

✍ Scribed by Marshall Godwin; Lucia Ruhland; Ian Casson; Susan MacDonald; Dianne Delva; Richard Birtwhistle; Miu Lam; Rachelle Seguin

Book ID: 115008642
Publisher: BioMed Central
Year: 2003
Tongue: English
Weight: 227 KB
Volume: 3
Category: Article
ISSN: 1471-2288
DOI: 10.1186/1471-2288-3-28

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