Effect of biventricular pacing on ventilatory and perceptual responses to exercise in patients with stable Chronic Heart Failure J Appl Physiol. 13 May May 2009 16 years ago Laveneziana P, O'Donnell DE, Ofir D, Agostoni P, Padeletti L, Ricciardi G, Palange P, Duranti R, Scano G