title: British sex ad responses overwhelm researchers.
authors.forename: R
authors.initials: R
authors.lastname: Gorna
mesh_terms: D001727:Bisexuality; D003275:Contraceptive Devices, Male / Q000706:statistics & numerical data; D005260:Female; D006302:Health Services Research; D006801:Humans; D008297:Male; D012747:Sexual Partners; D006113:United Kingdom