AUTHOR=Schwab Katjana S. , Kristiansen Glen , Isaak Alexander , Held Stefanie E. A. , Heine Annekristin , Brossart Peter TITLE=Long Term Remission and Cardiac Toxicity of a Combination of Ipilimumab and Nivolumab in a Patient With Metastatic Head and Neck Carcinoma After Progression Following Nivolumab Monotherapy JOURNAL=Frontiers in Oncology VOLUME=9 YEAR=2019 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2019.00403 DOI=10.3389/fonc.2019.00403 ISSN=2234-943X