Tesfaye, D., N. Ghanem, F. Carter, T. Fair, M. - A. Sirard, M. Hoelker, K. Schellander, and P. Lonergan,  "Gene expression profile of cumulus cells derived from cumulus?oocyte complexes matured either in vivo or in vitro",  Reproduction, Fertility and Development, vol. 21, issue 3: CSIRO, pp. 451-461, 2009.