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Q55347810-67E98D75-FEDE-4B94-ACF4-9DD0F925AF72
Q55347810-67E98D75-FEDE-4B94-ACF4-9DD0F925AF72
BestRank
Statement
http://www.wikidata.org/entity/statement/Q55347810-67E98D75-FEDE-4B94-ACF4-9DD0F925AF72
Effectiveness of face masks used to protect Beijing residents against particulate air pollution.
P2860
Q55347810-67E98D75-FEDE-4B94-ACF4-9DD0F925AF72
BestRank
Statement
http://www.wikidata.org/entity/statement/Q55347810-67E98D75-FEDE-4B94-ACF4-9DD0F925AF72
rank
NormalRank
type
BestRank
Statement
wasDerivedFrom
c31cfd85aeec44b57ffbcf269a4abbbcacaf2e89
P2860
Performance of facepiece respirators and surgical masks against surgical smoke: simulated workplace protection factor study