title: [Systematic evaluation of sickness certification II].
authors.forename: Olav
authors.initials: O
authors.lastname: Røyneland
authors.forename: Pål
authors.initials: P
authors.lastname: Hartvig
mesh_terms: D002568:Certification; D004185:Disability Evaluation; D006801:Humans; D018868:Insurance, Disability; D007348:Insurance, Health; D009664:Norway; D018582:Sick Leave