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Chen, Jianjun; Ma, Young Wha; Yoon, Kee Bong
Ma, Young Wha; Choi, Jeong Woo; Yoon, Kee Bong
Ma, Young Wha; Yoon, Kee Bong
Lok, Vanno; Le, Thi Giang; Yu, Jong Min; Ma, Young Wha; Nguyen, Vinh Phu; Choi, Seung Tae; Yoon, Kee Bong
Lee, Ho Jun; Dao, Van Hung; Ma, Young Wha; Yu, Jong Min; Yoon, Kee Bong
Song, Jung Soo; Lok, Vanno; Yoon, Kee Bong; Ma, Young Wha; Kong, Byeong Ook
Yoon, Seok Jeong; Lee, Ho Jun; Yoon, Kee Bong; Ma, Young Wha; Baek, Un Bong
Ma, Young Wha; Yang, Gimo; Yoon, Kee Bong; Le, Thi Giang
Le, Thi Giang; Yoon, Kee Bong; Ma, Young Wha
Stewart, Calvin M.; Gordon, Ali P.; Ma, Young Wha; Neu, Richard W.