TY  - RPRT
TI  - Bleeding patterns during continuous combined estrogen-progestogen therapy.
AU  - U Marslew
AU  - B J Riis
AU  - C Christiansen
PY  - 1991
DO  - 10.1016/0002-9378(91)90677-j
UR  - https://pubmed.ncbi.nlm.nih.gov/1827947/
ID  - 1827947
ER  -