A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is application/pdf.
S. Sakamoto, T. Kawabata, M. Kasai, K. Watanabe, H. Saito, T. Inoue. "Long Term Observation on Chronic Progressive Sensori-neural Hearing Loss." AUDIOLOGY JAPAN 14.2 (1971) 83-88