Amniotic fluid concentrations of interleukin-1beta, interleukin-6 and TNF-alpha in chorioamnionitis before 32 weeks of gestation: histological associations and neonatal outcome - Baud,O.; Emilie,D.; Pelletier,E.; Lacaze-Masmonteil,T.; Zupan,V.; Fernandez,H.; Dehan,M.; Frydman,R.; Ville,Y. (Br J Obstet Gynaecol, 1999)