Reference linking and correction

Is/are data from PubMed and Crossref always reliable?
  An important distinction between PubMed and Crossref is the level of curation that the two organizations undertake of the data submitted. Crossref explic...
Tue, Mar 28, 2017 at 5:23 PM
A DOI inserted by Crossref Linking resolves to a broken link.
  Unfortunately, there are more DOIs that resolve to broken links than we would like. This is because the URL that the DOI link goes to needs to be updated...
Tue, Mar 28, 2017 at 5:25 PM
Error message after applying critical HTTPS patch for PubMed Linking Modules
It was announced that on September 30, NCBI will completely transition their web services from HTTP to HTTPS. NCBI had notified us that this deadl...
Mon, Feb 13, 2017 at 5:54 PM
PubMed Reference Checking fails with "301" error
It was announced that on September 30, NCBI will completely transition their web services from HTTP to HTTPS. NCBI had notified us that this deadline has be...
Mon, Jan 23, 2017 at 10:13 AM