TY  - RPRT
TI  - A comparative study of sequential and simultaneous estrogen-progestogen cyclic medication.
AU  - M C Andrews
AU  - W C Andrews
AU  - W L LeHew
PY  - 1966
DO  - 10.1016/s0002-9378(16)34640-3
UR  - https://pubmed.ncbi.nlm.nih.gov/5914606/
ID  - 5914606
ER  -