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Health Serv Res. 2011 Apr;46(2):394-6. doi: 10.1111/j.1475-6773.2011.01255.x.

Introduction to special section: causality in health services research.

PMID:
21371027
PMCID:
PMC3064909
DOI:
10.1111/j.1475-6773.2011.01255.x
[Indexed for MEDLINE]
Free PMC Article

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