| Frequent attenders in primary health care: A cross-sectional study of frequent attenders’ psychosocial and family factors, chronic diseases and reasons for encounter in a Finnish health centre | ||
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Informed consent was obtained from every participant in the interview after the purpose of the study had been explained to them. The study protocol was approved by the Ethics Committee of the University of Oulu. The Ministry of Social Affairs and Health granted a permission to use the statistics of the Health District of Oulainen and the Northern Ostrobothnia Hospital District and the medical records of the patients in the health centre.