TY - GEN AU - Bernstein,M E TI - Sperm separation for sex selection SN - 0268-1161 PY - 1999///0121 KW - Cell Separation KW - methods KW - Fertilization in Vitro KW - Humans KW - Male KW - Sex Preselection KW - Spermatozoa KW - cytology N1 - Publication Type: Comment; Letter UR - https://doi.org/10.1093/humrep/13.9.2658 ER -