◇◆

xlink:role XLink Linking Role

A URI reference pointing to some resource that describes the role or function of an XLink link.
OPTIONAL on many elements; click for list and usage

<abbrev>, <app>, <bio>, <chem-struct>, <collab>, <contrib>, <custom-meta>, <element-citation>, <email>, <ext-link>, <funding-source>, <graphic>, <inline-graphic>, <inline-supplementary-material>, <institution>, <issue-id>, <license>, <long-desc>, <media>, <mixed-citation>, <named-content>, <nlm-citation>, <pronunciation>, <pub-id>, <related-article>, <self-uri>, <supplementary-material>, <uri>, <volume-id>

Value Meaning
Text, numbers, or special characters The URI of a resource that describes the role, reason, or rationale for the link.
Restriction This is an optional attribute; there is no default.