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. |
|---|---|
| Zdroj: | Epidemiology, 1991 Sep 01. 2(5), 375-379. |
| Databáze: | JSTOR Journals |
| Externí odkaz: |
|