Singh, AKrishan, ISingh, N1972-07-012009-05-271972-07-012009-05-271972-07-01Singh A, Krishan I, Singh N. The effect of occupational stress on the electrocardiogram of rickshaw pullers. Indian Heart Journal. 1972 Jul; 24(3): 266-70http://imsear.searo.who.int/handle/123456789/3196engAdultArrhythmias, Cardiac --diagnosisElectrocardiographyHumansMaleMiddle AgedOccupational Diseases --diagnosisPhysical ExertionStress, Physiological --diagnosisThe effect of occupational stress on the electrocardiogram of rickshaw pullers.Journal Article