title: [Can the "double blind" be recognized before the identifying codes are revealed?].
mesh_terms: D000419:Albuminuria / Q000188:drug therapy; D003692:Delayed-Action Preparations; D003924:Diabetes Mellitus, Type 2 / Q000188:drug therapy; D004311:Double-Blind Method; D006801:Humans; D006973:Hypertension / Q000188:drug therapy; D017706:Lisinopril / Q000627:therapeutic use*; D009543:Nifedipine / Q000627:therapeutic use*
chemical_list: D003692:Delayed-Action Preparations; D017706:Lisinopril; D009543:Nifedipine
vernacular_title: Puede conocerse el "doble ciego" antes de desvelar los códigos de identificación?