Dahl, A. A., Grotmol, K. S., Hjermstad, M. J., Kiserud, C. E., & Loge, J. H. (2020). Norwegian reference data on the Fatigue Questionnaire and the Patient Health Questionnaire-9 and their interrelationship. Ann Gen Psychiatry.

Dahl, Alv A., Kjersti Støen Grotmol, Marianne Jensen Hjermstad, Cecilie Essholt Kiserud, e Jon Håvard Loge. "Norwegian Reference Data On the Fatigue Questionnaire and the Patient Health Questionnaire-9 and Their Interrelationship." Ann Gen Psychiatry 2020.

Dahl, Alv A., et al. "Norwegian Reference Data On the Fatigue Questionnaire and the Patient Health Questionnaire-9 and Their Interrelationship." Ann Gen Psychiatry 2020.