TY - RPRT TI - Changes in urinary hydroxyproline in premature infants. AU - R Smith AU - M Dehan AU - E O Reynolds PY - 1968 DO - 10.1016/0009-8981(68)90081-8 UR - https://pubmed.ncbi.nlm.nih.gov/5725205/ ID - 5725205 ER -