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A time to pregnancy questionnaire designed for long term recall: validity in Oxford, England.
STUDY OBJECTIVE--To establish the degree of validity of data on time to pregnancy, derived retrospectively using a short questionnaire. DESIGN--Information from the questionnaire was compared with data that had been collected concurrently from the same individuals. SETTING AND PARTICIPANTS--Question...
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| Main Authors: | , , , , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
1995
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| Assuntos: | |
| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC1060805/ https://ncbi.nlm.nih.gov/pubmed/7629471 |
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