Ramachandra Rao, A VRamaswamy, V N1981-05-012009-05-301981-05-012009-05-301981-05-01Ramachandra Rao AV, Ramaswamy VN. A report of an ECG showing unusual manifest and concealed trigeminy. Journal of the Association of Physicians of India. 1981 May; 29(5): 429-31http://imsear.searo.who.int/handle/123456789/87708engArrhythmia, Sinus --physiopathologyCardiac Complexes, Premature --physiopathologyElectrocardiographyHeart VentriclesHumansMaleMiddle AgedA report of an ECG showing unusual manifest and concealed trigeminy.Case Reports