Note: Funding Information: H.LT. received an unrestricted personal grant from Merck BV. F.J.M.B. receives monetary compensation as a member of the external advisory board for Merck Serono (the Netherlands) and Ferring pharmaceutics BV (the Netherlands), for advisory work for Gedeon Richter (Belgium) and Roche Diagnostics on automated AMH assay development, and for a research cooperation with Ansh Labs (USA). B.W.M. is supported by a NHMRC Practitioner Fellowship (GNT1082548) and reports consultancy for ObsEva, Merck and Guerbet. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.