1Department of Electronic Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung, 807 Taiwan, R. O. C., Taiwan.
2Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung, 807 Taiwan, R. O. C., Taiwan.
3Faculty of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung, 807 Taiwan, R. O. C., Taiwan.
4Department of Chemical Engineering, I-Shou University, 840 Taiwan, R. O. C., Taiwan.
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