Respiratory chain enzymes in muscle of endurance athletes: effect of L-carnitine. - Huertas,R.; Campos,Y.; Diaz,E.; Esteban,J.; Vecchietti,L.; Montanari,G.; D’Iddio,S.; Corbi,M.; Arenas,J. (Biochem Biophys Res Commun, 1992)