Pamecha, SGupta, M KMittal, S R1993-08-012009-05-301993-08-012009-05-301993-08-01Pamecha S, Gupta MK, Mittal SR. Effect of hyperventilation and exercise on right sided chest leads in normal persons. Journal of the Association of Physicians of India. 1993 Aug; 41(8): 545http://imsear.searo.who.int/handle/123456789/85993engAdultElectrocardiographyExercise TestFemaleHeart --physiologyHumansHyperventilation --physiopathologyMaleLetter