1.
Besson J, Beck T, Wiesbeck G, Hämmig R, Kuntz A, Abid S, Stohler R. Opioid maintenance therapy in Switzerland: an overview of the Swiss IMPROVE study. Swiss Med Wkly [Internet]. 2014 Mar. 23 [cited 2024 Nov. 25];144(1314):w13933. Available from: https://smw.ch/index.php/smw/article/view/1850