1 Department of Pharmacy, National Center for Child Health and Development, Tokyo, Japan. Electronic address: saito-jn@ncchd.go.jp.
2 Japan Drug Information Institute in Pregnancy, National Center for Child Health and Development, Tokyo, Japan.
3 Department of Pharmacy, National Center for Child Health and Development, Tokyo, Japan.
4 Department of Pharmacy, National Center for Child Health and Development, Tokyo, Japan; Japan Drug Information Institute in Pregnancy, National Center for Child Health and Development, Tokyo, Japan.
5 Division of Obstetrics, Center for Maternal-Fetal, Neonatal and Reproductive Medicine, National Center for Child Health and Development, Tokyo, Japan.
6 Division of Fetal Medicine, Center for Maternal-Fetal, Neonatal and Reproductive Medicine, National Center for Child Health and Development, Tokyo, Japan.
7 Division of Obstetrics, Center for Maternal-Fetal, Neonatal and Reproductive Medicine, National Center for Child Health and Development, Tokyo, Japan; Division of Fetal Medicine, Center for Maternal-Fetal, Neonatal and Reproductive Medicine, National Center for Child Health and Development, Tokyo, Japan.
8 Japan Drug Information Institute in Pregnancy, National Center for Child Health and Development, Tokyo, Japan; Division of Maternal Medicine, Center of Maternal-Fetal, Neonatal and Reproductive Medicine, National Center for Child Health and Development, Tokyo, Japan.