Visualization 3: Label-free characterization of white blood cells by measuring 3D refractive index maps YoonJonghee KimKyoohyun ParkHyunJoo ChoiChulhee JangSeongsoo ParkYongKeun 2015 Visualization3 Originally published in Biomedical Optics Express on 01 October 2015 (boe-6-10-3865)