Associations of vomiting and antiemetic use in pregnancy with levels of circulating GDF15 early in the second trimester: A nested case-control study [version 1; referees: 2 approve... oleh Clive J. Petry, Ken K. Ong, Keith A. Burling, Peter Barker, Sandra F. Goodburn, John R.B. Perry, Carlo L. Acerini, Ieuan A. Hughes, Rebecca C. Painter, Gijs B. Afink, David B. Dunger, Stephen O'Rahilly