Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Sakaguchi Hirofumi and Suzuki Toshihiro,A Case of Congenital Absence of the Oval Window with a Bifid Intratympanic Facial Nerve,Practica Oto-Rhino-Laryngologica,0032-6313,The Society of Practical Otolaryngology,2019,112,4,216-217,https://cir.nii.ac.jp/crid/1390564238095536640,https://doi.org/10.5631/jibirin.112.216