Regeneration and transplantation of muscles in old rats and between young and old rats.
D000375:Aging; D000818:Animals; D008297:Male; D009119:Muscle Contraction; D009132:Muscles / Q000166:cytology / Q000502:physiology / Q000637:transplantation*; D051381:Rats; D012038:Regeneration; D014182:Transplantation, Autologous; D014184:Transplantation, Homologous