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by Choi, Baek-young; Zhang, Zhi-Li; Du, David Hung-chang
by Han, Keesook J.; Choi, Baek-young; Song, Sejun
by Kim, Daehee; Song, Sejun; Choi, Baek-young
by Baek-Young Choi; Zhi-Li Zhang; David Hung-Chang Du