Identification of Specific Cell-Surface Markers of Adipose-Derived Stem Cells from Subcutaneous and Visceral Fat Depots di Wee Kiat Ong, Chuen Seng Tan, Kai Li Chan, Grace Gandi Goesantoso, Xin Hui Derryn Chan, Edmund Chan, Jocelyn Yin, Chia Rou Yeo, Chin Meng Khoo, Jimmy Bok Yan So, Asim Shabbir, Sue-Anne Toh, Weiping Han, Shigeki Sugii