Economou, K.A. Christopikou, D. Tsorva, E. Davies, S. Mastrominas, M. Cazlaris, H. Koutsilieris, M. Angelogianni, P. Loutradis, D., The combination of calcium ionophore A23187 and GM-CSF can safely salvage aged human unfertilized oocytes after ICSI, Journal of Assisted Reproduction and Genetics, (34), 33-41, 2017, Springer New York LLC, 1058-0468, 1573-7330