The use of never-married status to approximate the homosexual population.
Harnly
M E
ME
Kelter
A
A
D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology*; D000328:Adult; D000367:Age Factors; D002140:California; D006716:Homosexuality; D006801:Humans; D008297:Male; D008875:Middle Aged; D012847:Single Person