Mr. Yasuo Nakayama and Ms. Toshimi Matsushima have retired from University of Toyama in March, 2017. Mr. Nakayama was a technical officer and supported basic and clinical researches at our department for these 37 years! Ms. Matsushima was a nurse in our hospital for these 38 years! She supported us at our outpatient clinic for the last 5 years. We would like to express our special thanks from the bottom of out hearts.