title: Relative and absolute changes in skin collagen mass in the rat.
mesh_terms: D000375:Aging; D000818:Animals; D001835:Body Weight; D001842:Bone and Bones / Q000378:metabolism; D003094:Collagen / Q000032:analysis / Q000378:metabolism*; D005260:Female; D008297:Male; D009929:Organ Size; D051381:Rats; D012737:Sex Factors; D012867:Skin / Q000032:analysis / Q000033:anatomy & histology / Q000254:growth & development / Q000378:metabolism*; D013710:Tendons / Q000378:metabolism
chemical_list: D003094:Collagen