title: Quality of life on angina therapy.
mesh_terms: D000279:Administration, Cutaneous; D000787:Angina Pectoris / Q000188:drug therapy* / Q000523:psychology; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D006801:Humans; D008297:Male; D008875:Middle Aged; D005996:Nitroglycerin / Q000008:administration & dosage*; D011788:Quality of Life; D011897:Random Allocation
chemical_list: D005996:Nitroglycerin