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J Am Med Inform Assoc 14:232-234 doi:10.1197/jamia.M2243
  • Research paper
    • Original Investigation

The Prevalence and Inaccessibility of Internet References in the Biomedical Literature at the Time of Publication

Table 2

Reason for 100 Inaccessible URL References

Reason (HTTP Error Return Code) URL References
“Not Found” (404) 57
“Forbidden” (403) 4
“Internal Server Error” (500) 2
“Method Not Allowed” (405) 2
“Unauthorized” (401) 1
Time out after 30 seconds 34

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