title: Refractory hypertension: patient types, special problems, and approaches to therapy.
mesh_terms: D000367:Age Factors; D000368:Aged; D000959:Antihypertensive Agents / Q000627:therapeutic use; D044383:Black People; D004359:Drug Therapy, Combination; D006801:Humans; D006973:Hypertension / Q000188:drug therapy; D008297:Male; D008875:Middle Aged
chemical_list: D000959:Antihypertensive Agents