_:n7da3c0dd2b6a4378b7a1bc25914caa0exb1
<http://schema.org/position>
"1"^^<http://www.w3.org/2001/XMLSchema#integer>
<https://thietbichannuoiheo.com/nguyen-nhan-va-bien-phap-khac-phuc-tinh-trang-ty-le-de-giam/>