Van Peenen P F, Blanchard A G, Wolkonsky P M
Am J Public Health. 1984 Dec;74(12):1408-9. doi: 10.2105/ajph.74.12.1408.
Smoking habits of White male employees of a large oil company were analyzed. There were only slight differences in smoking habits between refinery and nonrefinery employees. Salaried employees, both at refineries and elsewhere, smoked much less than hourly employees.
对一家大型石油公司的白人男性员工的吸烟习惯进行了分析。炼油厂员工和非炼油厂员工的吸烟习惯只有细微差别。炼油厂及其他地方的 salaried 员工吸烟比小时工少得多。