[Study on the method of manual inspection of the external uterine orifice included in the new rhythm method of family planning].
Miyazaki
F
F
Katahira
K
K
Narazaki
R
R
Hashimoto
K
K
Hayashi
T
T
D000328:Adult; D002584:Cervix Uteri; D005260:Female; D006801:Humans; D012252:Natural Family Planning Methods; D010808:Physical Examination