RT Journal Article SR Electronic T1 Propranolol in the office treatment of angina pectoris JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 527 OP 530 VO 99 IS 11 A1 B. J. Harley A1 R. O. Davies YR 1968 UL http://www.cmaj.ca/content/99/11/527.abstract