Gay men vary in their beliefs about what constitutes sex: comment on Sanders et al--Misclassification bias: diversity in conceptualisations about having 'had sex' (Sexual Health 2010;7:31-4).
Martin
M
Holt
Diana
D
Bernard
Kane
K
Race
D001294:Attitude to Health; D003075:Coitus / Q000523:psychology*; D007722:Health Knowledge, Attitudes, Practice; D018451:Homosexuality, Male / Q000523:psychology*; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D009517:New South Wales; D012747:Sexual Partners