[Study of the measurement of free triiodothyronine in the field of pediatrics].
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D011863:Radioimmunoassay / Q000379:methods*; D011933:Reagent Kits, Diagnostic / Q000592:standards*; D013959:Thyroid Diseases / Q000175:diagnosis; D014284:Triiodothyronine / Q000097:blood*
D011933:Reagent Kits, Diagnostic; D014284:Triiodothyronine