TY  - GEN
AU  - Hoffmann,H
AU  - Moore,C
AU  - Zimmermann,H
AU  - Elger,W
AU  - Schwarz,S
AU  - Gräser,T
AU  - Oettel,M
TI  - Approaches to the replacement of ethinylestradiol by natural 17beta-estradiol in combined oral contraceptives
SN  - 0940-2993
PY  - 1998///1218
KW  - Animals
KW  - Clinical Trials as Topic
KW  - Contraceptives, Oral, Combined
KW  - administration & dosage
KW  - Drug Administration Schedule
KW  - Estradiol
KW  - Estradiol Congeners
KW  - Ethinyl Estradiol
KW  - Female
KW  - Humans
KW  - Menstrual Cycle
KW  - drug effects
KW  - Ovarian Follicle
KW  - Rats
N1  - Publication Type: Journal Article; Review
UR  - https://doi.org/10.1016/s0940-2993(98)80034-1
ER  -