AUTHOR=Rimel B. J. TITLE=Clinical Trial Accrual: Obstacles and Opportunities JOURNAL=Frontiers in Oncology VOLUME=6 YEAR=2016 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2016.00103 DOI=10.3389/fonc.2016.00103 ISSN=2234-943X