There are many reasons why the text or metadata of an article might be footnoted. For those footnotes known to contain a particular type of information, this attribute names the type of material being stated in the footnote. This could be a means of preserving, for example, information that a contributor is on leave of absence.
| Value | Meaning |
|---|---|
| Text, numbers, or special characters | The type of footnote, where the publisher or archive has given the footnote a special type such as “corresp” to indicate a corresponding author footnote. This attribute may take any value, but see the list of suggested values below. |
| Restriction: This attribute may be specified if the element is used. | |