众所周知,吸烟与肺癌及其他疾病的发展密切相关,但是至今尚未完全证实,吸烟可能会导致白血病。对加里福尼亚34000人所作的调查结果表明,原先的吸烟者中患白血病的人数比从不吸烟的人多一倍,而患脊髓瘤的人数要多二倍。加里福尼亚大学的波尔·米尔兹及其同事曾请进入加里福尼亚一座教堂前厅的人填写一份调查表,调查表中列有吸烟 It is well-known that smoking is closely related to the development of lung cancer and other diseases, but it has not yet been fully confirmed that smoking may cause leukemia. A survey of 34,000 California residents showed that the number of former smokers who dreamed of leukemia doubled those who never smoked, while the number of people with myeloma was twice as high. Poll Mills, of the University of California, and his colleagues asked anyone who entered a church halls in California to complete a questionnaire containing smoking