- Macrophage inhibitory cytokine 1 in fetal membranes and amniotic fluid from pregnancies with and without preterm labour and premature rupture of membranes. Keelan, J.A., Wang, K., Chaiworapongsa, T., Romero, R., Mitchell, M.D., Sato, T.A., Brown, D.A., Fairlie, W.D., Breit, S.N. Mol. Hum. Reprod. (2003)