title: Letter: Endemic goitre.
mesh_terms: D000328:Adult; D000368:Aged; D006043:Goiter, Endemic / Q000097:blood*; D006801:Humans; D008875:Middle Aged; D009929:Organ Size; D013972:Thyrotropin / Q000097:blood / Q000378:metabolism; D013973:Thyrotropin-Releasing Hormone / Q000502:physiology
chemical_list: D013973:Thyrotropin-Releasing Hormone; D013972:Thyrotropin