AUTHOR=Al-Nedawi Khalid TITLE=The Yin–Yang of Microvesicles (Exosomes) in Cancer Biology JOURNAL=Frontiers in Oncology VOLUME=4 YEAR=2014 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2014.00172 DOI=10.3389/fonc.2014.00172 ISSN=2234-943X