Crespi Francesco, The Pineal Hypothesis for Drug Dependence, International Physiology Journal, Volume 2, Issue 1, 2018, Pages 3-8, ISSN 2578-8590, https://doi.org/10.14302/issn.2578-8590.ipj-18-2524. (https://openaccesspub.orgipj/article/934) Keywords: neurohormone; affective disorders; psychosomatic diseases and cancer