[Clinical study of thyroxine determination with Tetralute].
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013960:Thyroid Function Tests / Q000379:methods*; D013974:Thyroxine / Q000097:blood*
D013974:Thyroxine