TY - GEN AU - LITTRELL,J L AU - TOM,J AU - HARTMAN,C G TI - Time of opening of the vaginal closure membrane in weanling guinea pigs in relation to concentration of estrogen SN - 0003-276X PY - 2011///0128 KW - Animals KW - Estrogens KW - Female KW - Genitalia KW - growth & development KW - Guinea Pigs KW - Humans KW - Ovary KW - metabolism KW - Vagina N1 - Publication Type: Journal Article ER -