1. A study on the reasons for encounter at the University Hospital's affiliated community-oriented primary care clinic by using ICPC;Waza;Japan J Primary Care,1998
2. Overview of the research plan on the health issues and its frequencies for patients at home in the rural clinical settings by using ICPC;Mitsuse;Jichi Med Univ J,2000
3. What are the common diseases and common health problems? The use of ICPC in the community-based project (1st Report);Yamada;Japan J Primary Care,2000
4. The role of family practice in different health care systems: a comparison of reasons for encounter, diagnoses, and interventions in primary care populations in the Netherlands, Japan, Poland, and the United States;Okkes;J Fam Pract,2002
5. Ranking the frequency of patient illness at primary care clinics;Tanaka;Japan J Primary Care,2007