炭尘肺发病影响因素的研究郗书元，杨维荣，贾风云，洪恒令为了在尘肺发病众多危险因素共存情况下，排除混杂因素干扰，定量筛选和分析各种因素对尘肺发病的影响，我们选择结晶型炭素（石墨）及非结晶型炭素（电极炭）接尘作业人员为观察对象，以吉林炭素厂１９６４～１９... In order to eliminate the interference of confounding factors and to quantitatively screen and analyze the influence of various factors on the incidence of pneumoconiosis in the co-existence of many risk factors of pneumoconiosis, we choose the crystal carbon Graphite) and non-crystalline carbon (electrode carbon) dust-exposed workers as the observation object to Jilin Carbon Factory 1964 ~ 19 ...