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Colonoscopy (/ ˌ k ɒ l ə ˈ n ɒ s k ə p i /) or coloscopy (/ k ə ˈ l ɒ s k ə p i /) [1] is a medical procedure involving the endoscopic examination of the large bowel (colon) and the distal portion of the small bowel.
The first fee-charging open access scientific journals began appearing in 2000 with the creation of BioMed Central and then the Public Library of Science.Rather than deriving at least some of their revenue from subscription fees, fee-charging open access journals only charge the authors (or their funders) a publication fee.