Loh EW, Tan FHS. A RARE CASE OF AGGRESSIVE CALCITONIN-NEGATIVE MEDULLARY THYROID CARCINOMA. J ASEAN Fed Endocr Soc [Internet]. 2022 Jul. 15 [cited 2024 Nov. 21];37:46. Available from: https://asean-endocrinejournal.org/index.php/JAFES/article/view/2359