[1] Univ Fed Minas Gerais, Dept Pathol, BR-31270901 Belo Horizonte, MG, Brazil
[2] Albert Einstein Coll Med, Dept Cell Biol, Bronx, NY 10467 USA
[3] Albert Einstein Coll Med, Ruth L & David S Gottesman Inst Stem Cell & Regen, Bronx, NY 10467 USA
[4] Univ Luterana Brasil, Lab Stem Cells & Tissue Engn, Canoas, Brazil
[5] Wake Forest Sch Med, Dept Radiol, Winston Salem, NC USA
[6] Wake Forest Sch Med, Dept Internal Med Gerontol, Winston Salem, NC USA