The Scientific Foundations of the Ovulation Method

The efficacy, the ability of Indian women to use the Billings' Ovulation Method, and its effectiveness in helping them to control their fertility was studied in a sample of urban poor living in the De...

The percentage of 869 women in five countries capable of being taught to recognize the periovulatory cervical mucus symptom of the fertile period was determined in a prospective multicentre trial of t...

Several periovulatory symptoms sometimes used in natural family planning are correlated with the estimated time of ovulation in 23 subjects and 64 hormonally normal menstrual cycles. The data suggest ...

NFP (natural family planning) has replaced the term of rhythm method in the last decade as a designation for those methods of fertility regulation based on periodic abstinence. A graph presents the sy...