Control group for a case-control study, hospital or population?
keywords: disease under study, central helath facility
Main Author: | |
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Format: | Article |
Published: |
[Yogyakarta] : Universitas Gadjah Mada
1987
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Subjects: |
keywords: disease under study, central helath facility
Main Author: | |
---|---|
Format: | Article |
Published: |
[Yogyakarta] : Universitas Gadjah Mada
1987
|
Subjects: |