title: Ultimobranchial follicles and cysts in the rat thyroid during postnatal development.
mesh_terms: D000367:Age Factors; D000818:Animals; D000831:Animals, Newborn; D002467:Cell Nucleus; D003864:Depression, Chemical; D004847:Epithelial Cells; D006651:Histocytochemistry; D008297:Male; D008779:Methylthiouracil / Q000494:pharmacology*; D051381:Rats; D013194:Staining and Labeling; D013268:Stimulation, Chemical; D013961:Thyroid Gland / Q000166:cytology / Q000254:growth & development* / Q000378:metabolism; D013972:Thyrotropin / Q000502:physiology*; D013997:Time Factors; D014460:Ultimobranchial Body / Q000166:cytology / Q000254:growth & development*
chemical_list: D013972:Thyrotropin; D008779:Methylthiouracil