Progress in the study of Wolff-Parkinson-White Syndrome of the athletes. The transesophageal atrial pacing during bicyle exercise. (Progres dans l' etude de syndrome de Wolff-Parkinson-White des athletes. La stimulation auriculaire transoesophagienne lors d' un effort sur bicyclette ergometrique). - FURLANELLO, F; VERGARA, G; BETTINI, R; DISERTORI, M; INAMA, G; GUARNERIO, M; VISONA, L (International Journal of Sports Cardiology, 1984)