1. Spirometric “lung age” estimation for motivating smoking cessation;Morris;Prev. Med.,1985
2. Effect on smoking quit rate of telling patients their lung age: the step2quit randomized controlled trial;Parkes;Brit. Med. J.,2008
3. Regression and correlation analysis;Sall,2004
4. The Report of the Special Committee of Pulmonary Physiology of the Japanese Respiratory Society (JRS), 2001. Reference values for spirogram and blood gas analysis in non-smoking healthy adults in Japan. J. Jpn. Respir. Soc. April 1–17.
5. Yamaguchi, K., in press. A new method for evaluating lung age. J. Jpn. Respir. Soc.