Errata (a.o. from EMBASE Ovid) can have the DOI of the corrected publications in their title. The URL contains the DOI from the title field as well as the DOI from the DOI field. The first one leads to false positives: the erratum record s seen as a duplicate of the original publication, and (as it is later) takes precedence on the original publication
Candidate enhancement
The URL field can have embedded DOI's, e.g. http://www.plosone.org/article/fetchObject.action?uri=info%3Adoi%2F10.1371%2Fjournal.pone.0097656&representation=PDFhttp://www.ezproxy.is.ed.ac.uk/login?url=http://ovidsp.ovid.com/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&D=emed15&AN=373161115https://ed-primo.hosted.exlibrisgroup.com/openurl/44UOE/44UOE_VU2?sid=OVID:Embase&id=pmid:24852037&id=10.1371%2Fjournal.pone.0097656&issn=1932-6203&isbn=&volume=9&issue=5&spage=&pages=&date=2014&title=PLoS+ONE&atitle=Comparison+of+high+vs.+normal%2Flow+protein+diets+on+renal+function+in+subjects+without+chronic+kidney+disease%3A+A+systematic+review+and+meta-analysis&aulast=Schwingshackl&pid= & which could be added to the DOI's form the DOI field
Test results
Test show mixed results:
Problems
VERDICT
Not implemented