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A
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The types and frequencies of reference errors
| Types of errors | N1/N2 (%) | |
|---|---|---|
| A | Reference URLs linked to a wrong page or a ‘404 page not available’ (N1) among total references listed (N2) | 191/274 (69.7) |
| B | The authors not found on PubMed, Amazon (for books), or Google (N1) among the authors appearing in the references (N2) | 59/350 (16.9) |
| C | Incorrectly titled articles or books (N1) among the references (N2) | 148/152 (97.4) |
