The promise of rhythm
The determination of the woman's time of ovulation and its social impact in the United States, 1920-1940
Therapie in Geburtshilfe und Gynäkologie
Band II: Gynälokogie
Therapie in Geburtshilfe und Gynäkologie
Band I: Geburtshilfe
The Rhythm Cycles in Marriage
Periodical Abstention in Wedlock. A complete theoritical and practical introduction to the Knaus-Ogino method for the use of married people and their advisers
The rhythm of sterility and fertility in women