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Table 2. 

Number of publications by document type

Document typeNumber
Journal 85,759,950 
Patent 52,873,589 
Conference 4,702,268 
Book chapter 2,713,052 
Book 2,143,939 
No type given 90,478,102 
Document typeNumber
Journal 85,759,950 
Patent 52,873,589 
Conference 4,702,268 
Book chapter 2,713,052 
Book 2,143,939 
No type given 90,478,102 
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