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Q57071059-35B8BE07-A34C-4A2A-9DCE-FB0B14237CAB
Q57071059-35B8BE07-A34C-4A2A-9DCE-FB0B14237CAB
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Statement
http://www.wikidata.org/entity/statement/Q57071059-35B8BE07-A34C-4A2A-9DCE-FB0B14237CAB
Number of radiotherapy treatment machines in the population and cancer mortality: an ecological study
P2860
Q57071059-35B8BE07-A34C-4A2A-9DCE-FB0B14237CAB
BestRank
Statement
http://www.wikidata.org/entity/statement/Q57071059-35B8BE07-A34C-4A2A-9DCE-FB0B14237CAB
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Statement
wasDerivedFrom
35efdf3f45835f22fde1044483fe136ee1fbd201
P2860
Negative controls: a tool for detecting confounding and bias in observational studies.