1. Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital at Linkou, Taoyuan City 333, Taiwan
2. Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University at Linkou, Taoyuan City 333, Taiwan
3. Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University at Linkou, Taoyuan City 333, Taiwan
4. School of Medicine, National Tsing Hua University, Hsinchu 30013, Taiwan
5. School of Medicine, Chang Gung University at Linkou, Taoyuan City 333, Taiwan