title: When should open-label extension studies be stopped?
authors.affiliation: a Penn State College of Medicine.
authors.forename: Joshua S
authors.initials: JS
authors.lastname: Crites
mesh_terms: D000959:Antihypertensive Agents / Q000008:administration & dosage* / Q000191:economics*; D011307:Drug Prescriptions / Q000592:standards*; D006801:Humans; D006976:Hypertension, Pulmonary / Q000188:drug therapy*; D056687:Off-Label Use / Q000941:ethics*; D016032:Randomized Controlled Trials as Topic / Q000941:ethics*
chemical_list: D000959:Antihypertensive Agents