Ishigakurusha Publishing Co., Ltd. By Hiroshi Sakakida Introduction to Health Theory First edition, first printing: February 1, 1979. First edition, second printing: February 20, 1980. Stored at home for a long time by a non-professional. There is deterioration over time, stains, and dirt. Please understand and accept this used item before purchasing. Please refrain from purchasing if you are looking for a perfect item.