[1] Univ Nacl Cordoba, Sch Med, INICSA CONICET, Dept Cell Biol Histol & Embryol, RA-5000 Cordoba, Argentina
[2] Univ Nacl La Rioja, Histol & Embiyol, IICSHUM, La Rioja, Argentina
[3] Univ Autonoma Madrid, Fac Med, Hosp La Paz, E-28049 Madrid, Spain
[4] Univ Chile, Fac Med, Inst Ciencias Biomed, Santiago, Chile