Contributor web page
Capture the URL of a contributor's web page within an author-comment element with attribute content-type="url".
contrib-group/contrib/author-comment[@content-type = "url"]
Capture the URL as the value of the xlink:href attribute of an ext-link element.
Capture the value Author webpage
as the text content of the
ext-link element.
<author-comment content-type="url">
<p>
<ext-link ext-link-type="uri" xlink:href="https://sleep.med.harvard.edu/people/faculty/212/J+Allan+Hobson+MD">Author webpage</ext-link>
</p>
</author-comment>