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Q33693901-98198374-FB6F-4613-83BA-7746FBEA6929
Q33693901-98198374-FB6F-4613-83BA-7746FBEA6929
BestRank
Statement
http://www.wikidata.org/entity/statement/Q33693901-98198374-FB6F-4613-83BA-7746FBEA6929
A case-crossover analysis of air pollution and mortality in Philadelphia.
P921
Q33693901-98198374-FB6F-4613-83BA-7746FBEA6929
BestRank
Statement
http://www.wikidata.org/entity/statement/Q33693901-98198374-FB6F-4613-83BA-7746FBEA6929
rank
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type
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Statement
P921
air pollution