Effects of freezing-thawing on the spermatozoon nucleus: a comparative chromatin cytophotometric study in the porcine and human species S. Hamamah, D. Royère, JC Nicolle, M. Paquignon and J. LansacReprod. Nutr. Dev., 30 1 (1990) 59-64DOI: https://doi.org/10.1051/rnd:19900105