7Prendiville W, Elboume D, Chalmers I. The effects of routine oxytocic administration in the management of the third stage of labour: an overview of the evidence from controlled trials. Br J Obstet Gynaecol, 1988, 9:3-16
8Buttino L, Garite TJ. The use of 15 methyl F2 alpha prostaglandin (Prostin 1SM) for the control of postpartum hemorrhage. Am J Perinatol, 1986, 3 (3): 241-243
9Combs CA, Murphy EL, Laros RK. Factors associated with postpamma hemorrhage with vaginal birth. Obstet Gynecol, 1991, 77:69 - 76
10Nordstrom L, Fogelstam K, Fridman C, et al. Routine oxytocin in the third stage of labour: a placebo controlled randomized trial. Br J Obstet Gynaecol, 1997, 104 (7): 781-786