这是丁香园「漫话医学」专栏的第二期。
这个专栏由丁香园（微信号：dingxiangwang）及 浙江大学理论物理学博士 Sheldon 及其漫画团队联合，主要对医学相关的有趣知识进行科普。
文案设计：牛猫；
美术指导：牛猫；
图片绘制：赏鉴；
排版：胡豆；
责任编辑：猫羯座、shamouer
排版设计：lightingwing
图片来源：作者原创
参考文献：
[1] Proctor R N. The history of the discovery of the cigarette–lung cancer link: evidentiary traditions, corporate denial, global toll[J]. Tobacco Control, 2012, 21(2): 87-91.
[2] Witschi H. A short history of lung cancer[J]. Toxicological Sciences, 2001, 64(1): 4-6.
[3] Doll R, Hill A B. Mortality in relation to smoking: ten years' observations of British doctors[J]. British medical journal, 1964, 1(5395): 1399.
[4] Doll R, Hill A B. Smoking and carcinoma of the lung[J]. British medical journal, 1950, 2(4682): 739.
[5] Doll R, Peto R, Boreham J, et al. Mortality in relation to smoking: 50 years' observations on male British doctors[J]. Bmj, 2004, 328(7455): 1519.
[6] Doll R, Peto R, Wheatley K, et al. Mortality in relation to smoking: 40 years' observations on male British doctors[J]. Bmj, 1994, 309(6959): 901-911.
