1. Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei, 106, Taiwan, Republic of China, and Centers for Optoelectronic Biomedicine, College of Medicine, National Taiwan University, Taipei, Taiwan, Republic of China, and Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan, Republic of China, and Institute of Biopharmaceutical Science, National Yang-Ming University, Taipei, 11221, Taiwan, Republic of China