AUTHOR=Hoogduijn Martin J., Dor Frank J. TITLE=Mesenchymal Stem Cells: Are We Ready for Clinical Application in Transplantation and Tissue Regeneration? JOURNAL=Frontiers in Immunology VOLUME=4 YEAR=2013 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2013.00144 DOI=10.3389/fimmu.2013.00144 ISSN=1664-3224