[1] SEOUL NATL UNIV,COLL MED,CANC RES INST,CELL BIOL LAB,SEOUL 110744,SOUTH KOREA
[2] SEOUL NATL UNIV,COLL MED,CANC RES CTR,SEOUL 110744,SOUTH KOREA
[3] BORYUNG PHARMACEUT CO LTD,CENT RES INST,KUNPO SI 435050,SOUTH KOREA
[4] SEOUL NATL UNIV,NAT PROD RES INST,SEOUL 110744,SOUTH KOREA