1 Department of Immunology and Department of Reproductive Endocrinology and Infertility, Instituto Valenciano de Infertilidad-Madrid, Rey Juan Carlos University (IVI), Av. Del Talgo 68, Madrid 28023, Spain diana.alecsandru@ivi.es.
2 Department of Immunology and Department of Reproductive Endocrinology and Infertility, Instituto Valenciano de Infertilidad-Madrid, Rey Juan Carlos University (IVI), Av. Del Talgo 68, Madrid 28023, Spain.