Influence of different methods of clamping umbilical cord on jaundice and blood system in premature infants
YU Ling, XU Liu, ZHAO Yi-ran, LI Cong-zhe, YU Chang-li
Journal of Hebei Medical University . 2020, (12): 1428 -1431 .  DOI: 10.3969/j.issn.1007-3205.2020.12.014