1. From the Department of Physiology, Development and Neuroscience, University of Cambridge, United Kingdom (B.J.A., K.L.B., Y.N., A.D.K., E.A.H., A.S.T., K.J.B., C.M.C., N.I., C.J.S., K.L.S., C.B., D.A.G.)
2. Institute of Reproductive and Developmental Biology, Imperial College, London United Kingdom (C.J.S.)
3. Cambridge Cardiovascular Strategic Research Initiative (D.A.G.)
4. Cambridge Strategic Research Initiative in Reproduction (D.A.G.).