Bibliografía
Risk assessment and management to prevent preterm birth
B. Koullali, M.A. Oudijk, T.A.J. Nijman, B.W.J. Mol, E. PajkrtSeminars in Fetal & Neonatal Medicine 21 (2016) 80 - 88
Infection and preterm birth
Hugh C.G. Nadeau, Akila Subramaniam, William W. AndrewsSeminars in Fetal and Neonatal Medicine, Vol. 21, Issue 2, p100–105