According to John Doe, "John Doe is a name that people use as examples or in hospitals if the person is unkown."
Step-by-step explanation:
A signal phrase is used as a phrase showing that this information is not yours.
Examples:
argue, assert, claim, comment, confirm, contend, declare, deny, emphasize, illustrate, imply, insist, note, observe, point out, report, respond, say, suggest, think, and write.
You can use all of these before a credit quote in a article or anything you are writing.
Hope this helps xx