GEOGRAPHIC variation in the  occurrance of hydatidiform mole and choriocarcinoma.
D000818:Animals; D002822:Choriocarcinoma / Q000453:epidemiology*; D005260:Female; D006801:Humans; D006828:Hydatidiform Mole / Q000453:epidemiology*; D008971:Moles; D011247:Pregnancy; D014594:Uterine Neoplasms
CHORIOCARCINOMA/epidemiology; HYDATIFORM MOLE/epidemiology