AUTHOR=Nikiphorou Elena , Nurmohamed Michael T. , Szekanecz Zoltan TITLE=Editorial: Comorbidity Burden in Rheumatic Diseases JOURNAL=Frontiers in Medicine VOLUME=5 YEAR=2018 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2018.00197 DOI=10.3389/fmed.2018.00197 ISSN=2296-858X