Abstract 131: Quality and Quantity Control Cell Culture with Microgravity increases CD34-positive fraction and angiogenic potential of endothelial progenitor cells. Issue 4 (April 2017) - Hagiwara, Hiroko; Higashibata, Akira; Ogawa, Shiho; Kanazawa, Shigeyuki; Mizuno, Hiroshi; Tanaka, Rica