Ranking of contraceptive methods by levels of effectiveness

Tietze, C.

Sobrero, Aquiles J And Rosalie M Harvey (Edited By) Excerpta Medica International Congress Series Advances in Planned Parenthood, Vol 6 Viii+180p Illus Excerpta Medica: Amsterdam, Holland; New York, N Y , U S A 117-126

1971


Document Number: 480953

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