![](/img/cover-not-exists.png)
Selective Fecundability and Contraceptive Effectiveness
Robert G. Potter, Barbara Mc Cann and James M. SakodaVolume:
48
Language:
english
Journal:
The Milbank Memorial Fund Quarterly
DOI:
10.2307/3349290
Date:
April, 1970
File:
PDF, 266 KB
english, 1970