The frequency and spectrum of congenital anomalies in natural family planning users in South America: no increase in a case-control study. NFP-ECLAMC Group. Natural Family Planning. Latin-American Collaborative Study of Congenital Malformations
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| Description | scientific article published on December 1, 1997 |
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author: Jorge Lopez Camelo Joe Leigh Simpson |
| Publication date | December 1, 1997 |
| Language | English |
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