## Abstract ## Background In the city of Petrópolis, Brazil, artisans carve souvenirs from a variety of silica‐containing minerals. The finding of pulmonary massive fibrosis in one of the workers motivated an investigation of the prevalence of silicosis in this group. ## Methods Between January
✦ LIBER ✦
High prevalence of accelerated silicosis among gold miners in Jiangxi, China
✍ Scribed by Lap Ah Tse; Zhi Min Li; Tze Wai Wong; Zhen Ming Fu; Ignatius Tak Sun Yu
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 114 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0271-3586
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## Abstract **BACKGROUND:** Although an information campaign concerning periconceptional folic acid supplementation was launched in 1998 in Shanxi Province, China, the prevalence of neural tube defects in rural areas was reported as high as 140 per 10,000 births in 2002. The blood folate concentrat