title: [Therapeutic trials in Crohn's disease and ulcerative colitis: ethics, objectives and methodology. A G.R.E.C. cooperative study].
mesh_terms: D002986:Clinical Trials as Topic; D003093:Colitis, Ulcerative / Q000188:drug therapy*; D003424:Crohn Disease / Q000188:drug therapy*; D004311:Double-Blind Method; D004992:Ethics, Medical; D005602:France; D006801:Humans; D008722:Methods; D012460:Sulfasalazine / Q000627:therapeutic use
chemical_list: D012460:Sulfasalazine
vernacular_title: Les essais thérapeutiques au cours de la maladie de Crohn et de la rectocolite hémorragique: éthique, objectifs, méthodologie. Une étude coopérative du G.R.E.C.