title: Would you trust a surrogate respondent?
authors.affiliation: Institute of Preventive Medicine, Copenhagen University Hospital, Denmark.
authors.forename: C
authors.initials: C
authors.lastname: Gluud
authors.forename: K
authors.initials: K
authors.lastname: Krogsgaard
mesh_terms: D002986:Clinical Trials as Topic; D003625:Data Collection; D004812:Epidemiologic Methods; D004813:Epidemiology; D006801:Humans; D012106:Research