Postpartum haemorrhage - a continuing problem. Br J Obstet Gynaecol. 1987 Jan;94(1):67-71.

Induction of labour by amniotomy/oxytocin, forceps delivery, long first and second stages [...] were identified as significant risk factors of postpartum haemorrhage. / Le declenchement du travail (amniotomie/ocytocines), les forceps, les longues 1e et 2e phase [...] ont ete idntifies comme facteurs de risque significatifs de l'hemorragie postpartum.