Upright versus lying down position in the second stage of labour in nulliparous women with a low dose epidural: the BUMPES randomised controlled trial (British Medical Journal, 2017)

(untitled) - Bick, D; Briley, A; Brocklehurst, P; Hardy, P; Juszczak, E; Lynch, L; MacArthur, C; Moore, P; Nolan, M; Rivero Arias, O; Sanders, J; Shennan, A; et al.