TY - GEN AU - Litschgi,M TI - [Sterility in the female. Cervical factors] SN - 0040-5930 PY - 1987///0831 KW - Cervix Mucus KW - physiology KW - Cervix Uteri KW - physiopathology KW - Female KW - Humans KW - Infertility, Female N1 - Publication Type: English Abstract; Journal Article ER -