Mitochondrial electron transport complex I is a potential source of oxygen free radicals in the failing myocardium. - Ide,T.; Tsutsui,H.; Kinugawa,S.; Utsumi,H.; Kang,D.; Hattori,N.; Uchida,K.; Arimura,K.; Egashira,K.; Takeshita,A. (Circ Res, 1999)