Progesterone stimulates the long-distance migration of capacitated ram spermatozoa through viscous media under geotactic condition

1. Martínez-Rodríguez, C.
2. Anel-López, L.
3. Alvarez, M.
4. Ortega-Ferrusola, C.
5. Boixo, J.C.
6. Peña, F.J.
7. Anel, L.
8. de Paz, P.