TY - CHAP M1 - Book, Section TI - Presence of second midwife during the second active stage of labour reduces the risk of severe perineal trauma A1 - Willis, Jessie A1 - Guo, Teddy PY - 2015 T2 - 2 Minute Medicine AB - SN - PB - McGraw Hill CY - New York, NY Y2 - 2024/04/19 UR - accesssurgery.mhmedical.com/updatesContent.aspx?gbosid=582942 ER -