title: Problems in the design of medium and long-term therapeutic trials.
mesh_terms: D002986:Clinical Trials as Topic; D006801:Humans; D007158:Immunologic Techniques; D007917:Leprostatic Agents / Q000627:therapeutic use*; D007918:Leprosy / Q000188:drug therapy* / Q000276:immunology; D012107:Research Design
chemical_list: D007917:Leprostatic Agents