Contribution to authorship
L.M., A.I., K.P.W., R.D., A-M.A., J.P. and C.E.P. led the development of the manuscript. A.M., S.L., P.M., J.P. and C.E.P. designed the concept of the review and drafted the manuscript. C.W. provided statistical analysis advice and drafting. J.P., P.M. and C.E.P. advised on obstetric care.