Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) ITO Keiko and MIZUTARI Sachiko and ASAI Hidetoshi and HABA Kouichi,Pitfall of using a Provox for the recovery of speech after laryngectomy: Refractory tracheoesophageal fistula after removal of a Provox in two cases for which a Provox had proven useless,jibi to rinsho,0447-7227,JIBI TO RINSHO KAI,2022-01-20,68,1,57-60,https://cir.nii.ac.jp/crid/1390857777804713728,https://doi.org/10.11334/jibi.68.1_57