RT Journal Article SR Electronic T1 Giant inverted T waves and substantial QT interval prolongation induced by azithromycin JF Canadian Family Physician JO Can Fam Physician FD The College of Family Physicians of Canada SP 1012 OP 1015 VO 60 IS 11 A1 Tongtong Yu A1 Tiesheng Niu YR 2014 UL http://www.cfp.ca/content/60/11/1012.abstract AB