Malterud Kirsti, Bjelland Anne Karen, Elvbakken Kari Tove
Research Unit for General Practice, NORCE Norwegian Research Centre, Bergen, Norway.
Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.
Health Res Policy Syst. 2018 Nov 20;16(1):112. doi: 10.1186/s12961-018-0387-9.