title: [Analysis of the incidence of pneumoconiosis in Guizhou province, 2014].
authors.affiliation: Institute of Occupational Health, Guizhou Province Center for Disease Control and Prevention, Guiyang 550004 , China.
authors.forename: J H
authors.initials: JH
authors.lastname: Yang
authors.forename: S S
authors.initials: SS
authors.lastname: Wang