TY  - RPRT
TI  - Stanbio and "Tekit" methods for placental estrogens compared.
AU  - P G Besch
AU  - V C Buttram
AU  - N F Besch
PY  - 1973
UR  - https://pubmed.ncbi.nlm.nih.gov/4704929/
ID  - 4704929
ER  -