Varia Vol. 25, 2019/4 - pagesPages 5 to 7EditorialBy Michel HautefeuillePages 9 to 22Addictology: a neo-discipline and its homogeneity. Conditions for knowledge generation at workBy Jean DugarinPages 23 to 41Psychotherapy(s) and addiction(s): envelopes, attachment and interpersonal relationshipsBy Patrice Fernandes PereiraPages 43 to 60Addictions and oral problemsBy Haoua Tinta Struillou, Christine Lemaire, Tiphaine Sculo Chaiban, Morgane Guillou LandreatPages 61 to 75Parenthood and alcoholic addictionBy Isabelle TamianPages 77 to 95How can adopting mixed methods enhance understanding?By Adèle Morvannou, Magali Dufour, Dominique Tremblay, Natacha Brunelle, Élise Roy