Ammonia response to a constant exercise differences to the lactate response. - Ogino,K.; Kinugawa,T.; Osaki,S.; Kato,M.; Endoh,A.; Furuse,Y.; Uchida,K.; Shimoyama,M.; Igawa,O.; Hisatome,I.; Shigemasa,C. (Clin Exp Pharmacol Physiol, 2000)