Typical use effectiveness of Natural Cycles: postmarket

Cohort sizes defined by answers to Q2 and Q3

Natural Cycles: Natural Birth Control

Simon Rowland - Haleon

Fertility awareness-based methods of family planning - ScienceDirect

Drug development - Wikipedia

Mobile Apps for Sexual and Reproductive Health Education: a Systematic Review and Quality Assessment

Simon Rowland - Haleon

Elina Berglund Scherwitzl - Natural Cycles

Challenges, Free Full-Text