title: Why are we doing so many surveys?
authors.forename: Mahmoud
authors.initials: M
authors.lastname: Torabinejad
mesh_terms: D003625:Data Collection; D018865:Dental Research; D004708:Endodontics / Q000458:organization & administration*; D006302:Health Services Research / Q000379:methods*; D006801:Humans; D012953:Societies, Dental