1. Institute of Biology and Experimental Medicine—CONICET (N.P.D.G., P.V.L., C.L., V.A.L-L.), Buenos Aires, Argentina;
2. Department of Reproductive Medicine (S.J.S., J.K., A.S.K.), University of California San Diego, La Jolla, California;
3. Department of Biomedicine (B.B.), University of Basel, Basel, Switzerland;
4. Department of Physiology (C.L.), University of Buenos Aires, Buenos Aires, Argentina