The validity of questionnaire-based diagnoses: the third Nord-Trøndelag Health Study 2006–2008
Titel:
The validity of questionnaire-based diagnoses: the third Nord-Trøndelag Health Study 2006–2008
Auteur:
Hagen, Knut Zwart, John-Anker Aamodt, Anne Hege Nilsen, Kristian Bernhard Bråthen, Geir Helde, Grethe Stjern, Marit Tronvik, Erling A. Stovner, Lars Jacob