Thierens, S, van Binsbergen, A, Nolens, B, van den Akker, T, Bloemenkamp, K & Rijken, M J 2023, ' Vacuum extraction or caesarean section in the second stage of labour : A systematic review ', BJOG: An International Journal of Obstetrics and Gynaecology, vol. 130, no. 6, pp. 586-598 . https://doi.org/10.1111/1471-0528.17394