Preservation of chromosomal integrity in murine spermatozoa derived from gonocytes and spermatogonial stem cells surviving prenatal and postnatal exposure to γ‐rays in mice
1. Department of Biological Sciences, Asahikawa Medical University, Asahikawa, Hokkaido, Japan;2. Department of Radiobiology, Institute for Environmental Sciences, Rokkasho, Kamikita, Aomori, Japan