Results and Effect of Refusal Recontact in a Case-Control Study of Ectopic Pregnancy
Autor: | Holt, Victoria L., Daling, Janet R., Stergachis, Andy, Voigt, Lynda F., Weiss, Noel S. |
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Zdroj: | Epidemiology, 1991 Sep 01. 2(5), 375-379. |
Databáze: | JSTOR Journals |
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