编辑同志: 近阅两本书,一本为《卫生统计学》(1986年出版,卫生专业用,高等医药院校教材,杨树勤主编,第二版)127～128页中说“可以认为体重相同的13岁男孩,肺活量的大小与身高无关”。另一为《医学统计学》(1985年出版,中国医学百科全书,杨树勤主编),第177页上说:“可以认为当体重固定时,身高与肺活量间有正相 Editor comrades: read two books recently, one for the “Health Statistics” (published in 1986, for health professional, medical colleges and universities, Yang Shuqin editor, second edition) 127 to 128 pages that “can be considered the same weight 13-year-old boy, the size of the vital capacity has nothing to do with height. ” The other is “Medical Statistics” (published in 1985, encyclopedia of Chinese medicine, edited by Yang Shuqin), page 177 said: "It can be considered that when the weight is fixed, the height and vital capacity between the positive phase