TY  - RPRT
TI  - The "free thyroxine index".
AU  - P P Smyth
AU  - D K O'Donovan
PY  - 1969
DO  - 10.1007/bf02955461
UR  - https://pubmed.ncbi.nlm.nih.gov/4189975/
ID  - 4189975
ER  -