Funding for this research was provided by:
Nidarosfondet, a private fund for promotion of research in general practice
Text and Data Mining valid from 2020-01-10
Received: 15 October 2019
Accepted: 2 January 2020
First Online: 10 January 2020
Ethics and personal protection
: The present study was approved by the physicians at Risvollan health center, the Norwegian Centre for Research Data (NSD) and the Regional Committee for Medical and Health Research in Mid-Norway. Each still living patient (n = 67) who was included received a personal letter with information on the study, and information about the right to withdraw from the study. The physician who manually registered data in the medical records (MH), was released from the patient confidentiality by the Regional Committee for Medical and Health Research.
: Not applicable.
: Medrave extracted data in phase two of the study, but had no impact on the study. The authors have no personal, economical or other bindings to Medrave and no other competing interests.