arbre (1) thérapie (1) analyse (1) distribution (1) Dynamics (1) Treatment (1) Case (1) Drama (1) Heterosexuals (1) Therapeutics (1) Swiss (1) Substance abuse (1) Sex (1) Phylogeny (1) Patients (1) Men (1) Human beings (1) Male homosexuality (1) Grammar, Comparative and general--Case (1) Epidemics (1) Dynamics (1) Drama (1) Cluster analysis (1) Case (1) Sexual minorities (1) Analysis (1) Transmission (1) Substance use (1) Size (1) Phylogeny (1)