Platelet factor 4 induces cell apoptosis by inhibition of STAT3 via up-regulation of SOCS3 expression in multiple myeloma oleh Pei Liang, Suk Hang Cheng, Chi Keung Cheng, Kin Mang Lau, Shek Ying Lin, Eudora Y.D. Chow, Natalie P.H. Chan, Rosalina K.L. Ip, Raymond S.M. Wong, Margaret H. L. Ng