Ramaciotti D, Bahy M, Voinier B, Rey P
Soz Praventivmed. 1977 Jul-Aug;22(4):189-90. doi: 10.1007/BF02078753.
The prevalence of chronic bronchitis (according to the BMRC questionnaire on respiratory symptoms) for 1182 male smokers, as well as their peak flow rate, are related to age (18-65 years), cagarette consumption (1-55 cig./day) and exposure to atmospheric SO2 pollution (20-65 microgram/m3).
根据英国医学研究委员会（BMRC）呼吸症状调查问卷得出的1182名男性吸烟者的慢性支气管炎患病率，以及他们的最高呼气流量，与年龄（18 - 65岁）、香烟消费量（每天1 - 55支）和大气二氧化硫污染暴露量（20 - 65微克/立方米）相关。
