On the biological transformation: creatine-creatinine.
D001669:Biochemical Phenomena; D003401:Creatine / Q000378:metabolism*; D003404:Creatinine / Q000378:metabolism*; D006801:Humans; D009132:Muscles / Q000378:metabolism*
D003404:Creatinine; D003401:Creatine
CREATINE/metabolism; CREATININE/metabolism; MUSCLES/metabolism