OP10.10: Time interval analysis of flow velocity waveforms of ductus venosus in fetal growth restriction in correlation with pH of umbilical artery. (30th September 2019) - Seo, N.; Tachibana, D.; Kurihara, Y.; Yokoi, N.W.; Suekane, T.; Koyama, M.; Misugi, T.; Hamuro, A.; Nakagawa, K.; Nakano, A.