TY - GEN AU - Bernstein-Weiner,M E TI - Time of fertilization and sex ratio of offspring SN - 0301-4460 PY - 1978///0127 KW - Age Factors KW - Animals KW - Cattle KW - Coitus KW - Estrus KW - Female KW - Fertilization KW - Humans KW - Pregnancy KW - Sex Ratio N1 - Publication Type: Letter UR - https://doi.org/10.1080/03014467700002341 ER -