Institution: | a Department of Dyeing and Finishing, College of Engineering, Kyungpook National University, Taegu 702-701, South Korea b Department of Natural Fiber Science, College of Agriculture and Life Science, Kyungpook National University, Taegu 702-701, South Korea c Department of Otorhinolaryngology, Wonju College of Medicine, Yonsei University, Wonju 220-701, South Korea |