Nair, K GPinto, I JSoneji, S L1972-04-012009-05-271972-04-012009-05-271972-04-01Nair KG, Pinto IJ, Soneji SL. Diagnostic puzzle: interesting electrocardiogram. Indian Heart Journal. 1972 Apr; 24(2): 137-8http://imsear.searo.who.int/handle/123456789/3270engAtrial Fibrillation --diagnosisDigitalis Glycosides --poisoningElectrocardiographyHumansDiagnostic puzzle: interesting electrocardiogram.Journal Article