[Ultrastructural study on nodular endemic goiter].
D000293:Adolescent; D000328:Adult; D004848:Epithelium / Q000648:ultrastructure; D005260:Female; D006043:Goiter, Endemic / Q000473:pathology*; D006044:Goiter, Nodular / Q000473:pathology*; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged