Hung, Johnielyn, and Ann Margaret Chang. “Langerhans Cell Histiocytosis of the External Auditory Canal in an Adult Patient With Myelodysplastic Syndrome”. PJP, vol. 2, no. 1, Dec. 2016, p. 34, https://philippinejournalofpathology.org/index.php/PJP/article/view/51.