Perineal injury associated with hands on/hands poised and directed/undirected pushing: A retrospective cross-sectional study of non-operative vaginal births, 2011-2016.
Int J Nurs Stud. 2018 Jul;83:11-17. doi: 10.1016/j.ijnurstu.2018.04.002. Epub 2018 Apr 5.
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PMID: 29684830