Hasanoglu A, Baysal T, Bulbuloglu E, Yildirim Z. Upper airway obstruction with a large calcified substernal benign goiter . annalsmedres [Internet]. 2021 May 25 [cited 2024 Jul. 22];3(3):0203-5. Available from: http://annalsmedres.org/index.php/aomr/article/view/2519