AUTHOR=Cavazzana Marina TITLE=Innovations Needed for Effective Implementation of Ex Vivo Gene Therapies JOURNAL=Frontiers in Medicine VOLUME=4 YEAR=2017 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2017.00029 DOI=10.3389/fmed.2017.00029 ISSN=2296-858X