Dead end

https://www.wikidata.org/wiki/Q398589

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Physics 33M papers	Philosophy 22.3M papers	Mathematics 21.8M papers	Psychology 18.5M papers
Geometry 6.3M papers	Epistemology 5.7M papers	Social psychology 4.3M papers	Mechanics 2.8M papers
Psychotherapist 1.6M papers		Psychoanalysis 1.1M papers
Current
Dead end 2,016 papers
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History