Reiman M, Kujari H, Ekholm E, Lapinleimu H, Lentonen L, Haataja L; PIPARI Study Group. Interleukin-6 polymorphism is associated with chorioamnionitis and neonatal infections in preterm infants. Journal of Pediatrics. 2008;153(1): 19-24. PubMed: 18571528