title: Clinical trials of verapamil: comparative studies of verapamil with beta-blockers and nifedipine.
authors.forename: S H
authors.initials: SH
authors.lastname: Jackson
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use*; D004359:Drug Therapy, Combination; D006801:Humans; D006973:Hypertension / Q000188:drug therapy*; D009543:Nifedipine / Q000627:therapeutic use*; D014700:Verapamil / Q000627:therapeutic use*
chemical_list: D000319:Adrenergic beta-Antagonists; D014700:Verapamil; D009543:Nifedipine