Authors: Rebecca Elisabeth Ghosh; Jacob Dag Berild; Anna Freni Sterrantino; Mireille B Toledano; Anna L Hansell Journal: Arch Dis Child Fetal Neonatal Ed Date: 2017-08-05 Impact factor: 5.747
Authors: Sandra Bonellie; James Chalmers; Ron Gray; Ian Greer; Stephen Jarvis; Claire Williams Journal: BMC Pregnancy Childbirth Date: 2008-02-25 Impact factor: 3.007