Concepedia

Publication | Open Access

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

DOIFull Paper Access

492

Citations

4

References

2003

Year

Marshall Godwin, Lucia Rühland, Ian Casson, Susan M. MacDonald, Dianne Delva, Richard Birtwhistle, Miu Lam, Rachelle Seguin
BMC Medical Research Methodology

References

YearCitations

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