Prevalence of psychoactive substance use among acutely hospitalised patients in Oslo and Moscow: a cross-sectional, observational study

Gamboa, Danil; Jørgenrud, Benedicte Marie; Bryun, Evgeny A.; Vindenes, Vigdis; Koshkina, Evgenya A.; Nadezhdin, Aleksei V.; Kabashi, Saranda; Tetenova, Elena J.; Berg, Thomas; Nyman, Anna Armika Tussilago; Kolgashkin, Alexey J.; Petukhov, Aleksei E.; Perekhodov, Sergey N.; Davydova, Elena N.; Lerdal, Anners; Nordby, Gudmund & Bogstrand, Stig Tore (2020). BMJ Open.  ISSN 2044-6055.  10:e032572(9), s 1- 15 . doi: 10.1136/bmjopen-2019-032572