OHEO: Westlaw ID
When found in the manuscript, add the westlawid attribute to the bibItem.
Manuscripts may be delivered with URL links applied to bibliograhic items.
For links of this type, extract the id from the URL and use this value as the westlawid attribute in the bibItem.
URL: http://linkresolver.thomsonreuters.com/maf/wluk/ext/app/document?docguid=I6E024170E42711DA8FC2A0F0355337E9&rs=dauk1.0&linkType=doc
westlawid attribute: I6E024170E42711DA8FC2A0F0355337E9
<bibItem class="UKleg" confirmation="deferred" id="he-9780198815174-chapter-7-bibItem-11" linkType="mentioned" westlawid="I6E024170E42711DA8FC2A0F0355337E9">Balfour v. Balfour [1919] 2 KB 571</bibItem>