Hydroxyprolinemia and increased excretion of free hydroxyproline in early infancy.
D003094:Collagen / Q000378:metabolism; D006801:Humans; D006909:Hydroxyproline / Q000097:blood* / Q000652:urine*; D007231:Infant, Newborn; D007234:Infant, Premature; D010455:Peptides / Q000652:urine
D010455:Peptides; D003094:Collagen; D006909:Hydroxyproline