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Contraceptive Efficacy of the Diaphragm, the Sponge and the Cervical Cap
James Trussell, Jennifer Strickler and Barbara VaughanVolume:
25
Language:
english
Journal:
Family Planning Perspectives
DOI:
10.2307/2136156
Date:
May, 1993
File:
PDF, 1.38 MB
english, 1993