Off-pump versus on-pump coronary artery bypass: does number of grafts performed represent a selection bias in comparative studies? Results from a matched cohort comparison

Antonino Roscitano; Caterina Simon; Euclide Tonelli; Fabio Capuano; Giovanni Ruvolo; Riccardo Sinatra; Umberto Benedetto

Off-pump versus on-pump coronary artery bypass: does number of grafts performed represent a selection bias in comparative studies? Results from a matched cohort comparison