title: [Analysis of new pneumoconiosis cases during 2006 to 2011 in Tianjin].
authors: Jin-yan
authors: JY
authors: Sun
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D011009:Pneumoconiosis / Q000453:epidemiology*