Nystøyl, Dag Ståle ; Røislien, Jo ; Østerås, Øyvind... Nystøy, D.S., Røislien, J., Østerås, Ø. et al. (2020) Helicopter emergency medical service (HEMS) activity after increased distance to out-of-hours services: an observational study from Norway. BMC Emergency Medicine, 20, 88.
,
2020