1. Divisions of Applied Medicine (Centre for Reproductive Endocrinology and Medicine) (P.A.F., S.F., A.M., K.G., E.S.R.C.-D.), Institute of Medical Sciences, University of Aberdeen, Aberdeen AB25 2ZD, United Kingdom
2. School of Veterinary Medicine and Sciences (R.G.L.), University of Nottingham, Sutton Bonington LE15 5RD, United Kingdom
3. Applied Health Sciences (M.J.W., A.M., S.B.), Institute of Medical Sciences, University of Aberdeen, Aberdeen AB25 2ZD, United Kingdom
4. Division of Cell Sciences (P.J.B., A.M., P.J.O.), University of Glasgow Veterinary School, Glasgow G61 1QH, United Kingdom