Cocaine treatment demands in 10 western European countries: observed trends between 2011 and 2018 - Jérôme Antoine; Nadine Berndt; Mariana Astudillo; Donal Cairns; Stefan Jahr; Andrew Jones; Wil Kuijpers; Noelia Llorens; Suzi Lyons; Etienne Maffli; Natalia Magliocchetti; Marta Molina Olivas; et al. (Addiction, 2020)