Briggs, G. G.; Wan, SR (2006). «Drug therapy during labor and delivery, part 2». American Journal of Health-System Pharmacy. 63 (12): 1131–9. PMID16754739. doi:10.2146/ajhp050265.p2
Summers, L (1997). "Methods of cervical ripening and labor induction". Journal of Nurse-Midwifery. 42 (2): 71–85. doi:10.1016/S0091-2182(96)00138-3. PMID 9107114
Villar, J; Gülmezoglu, AM; Hofmeyr, GJ; Forna, F (2002). "Systematic review of randomized controlled trials of misoprostol to prevent postpartum hemorrhage". Obstetrics & Gynecology. 100 (6): 1301–12. doi:10.1016/S0029-7844(02)02371-2. PMID 12468178.
Briggs, G. G.; Wan, SR (2006). «Drug therapy during labor and delivery, part 2». American Journal of Health-System Pharmacy. 63 (12): 1131–9. PMID16754739. doi:10.2146/ajhp050265.p2