Bus

https://www.wikidata.org/wiki/Q178048

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Computer science 54.8M papers	Medicine 48.2M papers	Internal medicine 20.6M papers	Psychology 17.6M papers
Operating system 6.2M papers	Psychiatry 4.4M papers	Cardiology 2.8M papers	Myocardial infarction 657k papers
Computer hardware 516k papers		Conventional PCI 65.5k papers
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Bus 776 papers
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