TY  - RPRT
TI  - [Initial experiences with a levonorgestrel-ethinyl estradiol combination for interception].
AU  - R Fitz
AU  - W Grünberger
AU  - E Vytiska-Binstorfer
PY  - 1989
DO  - 10.1055/s-2008-1036294
UR  - https://pubmed.ncbi.nlm.nih.gov/2515090/
ID  - 2515090
ER  -