Letter: TSH level and thyroid function.
D006801:Humans; D013961:Thyroid Gland / Q000502:physiology*; D013972:Thyrotropin / Q000097:blood*; D013973:Thyrotropin-Releasing Hormone / Q000097:blood
D013973:Thyrotropin-Releasing Hormone; D013972:Thyrotropin