Effectiveness of the temperature rhythm system of contraception.
D000328:Adult; D001831:Body Temperature; D003075:Coitus; D005193:Family Planning Services; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009042:Motivation; D009790:Occupations; D010060:Ovulation; D010298:Parity; D011247:Pregnancy