title: Erratum to: 'Tocolysis for inhibiting preterm birth in extremely preterm birth, multiple gestations and in growth-restricted fetuses: a systematic review and meta-analysis'.
authors.affiliation: Department of Health Policy, National Center for Child Health and Development, Tokyo, Japan.
authors.forename: Celine
authors.initials: C
authors.lastname: Miyazaki
authors.affiliation: Department of Health Policy, National Center for Child Health and Development, Tokyo, Japan.
authors.forename: Ralf Moreno
authors.initials: RM
authors.lastname: Garcia
authors.affiliation: Department of Health Policy, National Center for Child Health and Development, Tokyo, Japan. ota-e@ncchd.go.jp.
authors.forename: Erika
authors.initials: E
authors.lastname: Ota
authors.affiliation: Graduate School of Human Sciences, Osaka University, Osaka, Japan.
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Swa
authors.affiliation: Department of Reproductive Health and Research, World Health Organization, Geneva, Switzerland.
authors.forename: Olufemi T
authors.initials: OT
authors.lastname: Oladapo
authors.affiliation: Department of Health Policy, National Center for Child Health and Development, Tokyo, Japan.
authors.forename: Rintaro
authors.initials: R
authors.lastname: Mori