[Proposed reference values for nine methods for measurement of free thyroxin]. / Proposition de valeurs de référence pour neuf techniques de dosage de la thyroxine libre dans le sérum.

ABSTRACT

In connection with a comparative study of nine kits for the measurement of free thyroxin, we determined reference values in a adult control group of 81 women and 73 men. The correlations observed between the kits are associated with very large differences in the results obtained. The reference ranges are more or less broad according to the kits, but narrower than those offered by the manufacturers.