Clinical Epidemiology Hamina, A, Odsbu, I, Borchgrevink, P C, Chen, L-C, Clausen, T, Espnes, K A, Gjesdal, K, Handal, M, Hartikainen, S, Hjellvik, V, Holter, M T S, Høibø, T, Kurita, G P, Langaas, H C, Lid, T G, Nøst, T H, Sjøgren, P & Skurtveit, S 2022, ' Cohort Description : Preventing an Opioid Epidemic in Norway – Focusing on Treatment of Chronic Pain (POINT) – A National Registry-Based Study ', Clinical Epidemiology, vol. 14, pp. 1477-1486 . https://doi.org/10.2147/CLEP.S382136 Hamina, A, Odsbu, I, Borchgrevink, P C, Chen, L-C, Clausen, T M, Espnes, K A, Gjesdal, K, Handal, M, Hartikainen, S, Hjellvik, V, Holter, M T S, Høibø, T, Kurita, G P, Langaas, H C, Lid, T G, Nøst, T H, Sjøgren, P & Skurtveit, S 2022, ' Cohort Description: Preventing an Opioid Epidemic in Norway – Focusing on Treatment of Chronic Pain (POINT) – A National Registry-Based Study ', Clinical Epidemiology, vol. 14, pp. 1477-1486 . https://doi.org/10.2147/CLEP.S382136