Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Ito Ayako and Kobayashi Hitome and Higo Ryuzaburo and Suzaki Harumi,A Case of Malignant Melanoma of the Middle Ear,Practica Oto-Rhino-Laryngologica,00326313,The Society of Practical Otolaryngology,2013,106,5,403-407,https://cir.nii.ac.jp/crid/1390001204273000576,https://doi.org/10.5631/jibirin.106.403