TY  - RPRT
TI  - Effect of prolonged cyclic therapy with estrogen-progestin combinations on thyroid function.
AU  - R R Margulis
AU  - R Leach
PY  - 1967
DO  - 10.1016/0002-9378(67)90316-x
UR  - https://pubmed.ncbi.nlm.nih.gov/4166956/
ID  - 4166956
ER  -