The measurement error in the RCU test.
D004912:Erythrocytes / Q000378:metabolism*; D013960:Thyroid Function Tests; D013961:Thyroid Gland / Q000502:physiology*; D014284:Triiodothyronine / Q000378:metabolism*; D014781:Viscera
D014284:Triiodothyronine
ERYTHROCYTES/metabolism; THYROID GLAND/physiology; TRIIODOTHYRONINE/metabolism