Use caution when determining "virginal" vs "nonvirginal" status.
T
T
Bravender
S J
SJ
Emans
M R
MR
Laufer
D000293:Adolescent; D005260:Female; D006801:Humans; D000292:Pelvic Inflammatory Disease / Q000209:etiology*; D010817:Physician-Patient Relations; D012746:Sexual Abstinence