此材料原載於美國醫學雜誌,其內容多爲以前的材料,與今天的国際情况可能有所不同(尤其是北朝鮮,由於朝鮮人民共和國政府的英明領導,五年來在衛生建設上的努力,疾病流行情况将有所改善,但是在此篇材料中的某些問題尚有其一定的參考價值。由譯者譯出後並稍加修改,故刊出僅供作爲療解朝鮮疾病衛生情况上的參考。 This material was originally published in the Medical Journal of the United States and is mostly based on previous materials and may differ from today’s international situation (especially in North Korea. Due to the wise leadership of the government of the People’s Republic of Korea and its efforts in health construction over the past five years, The prevalence of the disease will improve, but some of the problems in this material have some reference value. Translated by the translator and slightly modified, it is published only for the treatment of disease in North Korea on the health situation The reference.