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The "Safe Periode" as a birth control measure
A study and evaluaton of available data
Autoren
Robert L. Dickinson
Seiten
13
The science of a new life
Autoren
John Cowan
Seiten
405
The Shadow of the Storck
A text book of Birth Control Methods..
The Shadow of the Storck
A text book of Birth Control Methods.
The Simon population trust
A brief history
Autoren
Penny Kane
Seiten
12
The spermicidal potency of Coca-Cola and Pepsi-Cola
Autoren
C. Y. Hong, C. C. Shieh, P. Wu
Seiten
2
The spermicidal powers of chemical contraceptives
III. Pessaries
Autoren
John Baker
Seiten
11
The spermicidal powers of chemical contraceptives I.
Introduction, and experiments on guinea-pig sperms
Autoren
John Baker
Seiten
7