TY - GEN AU - Farkas,M AU - Falkay,G AU - Szigethy,A TI - Observations with Ovidon SN - 0133-3909 PY - 1978///0127 KW - Contraceptives, Oral KW - adverse effects KW - Drug Tolerance KW - Ethinyl Estradiol KW - Female KW - Humans KW - Norgestrel KW - Ovary KW - drug effects KW - Pregnancy N1 - Publication Type: Journal Article ER -