Abstract
1 Research and Diagnostic Center, Centers for Disease Control, Taipei, Taiwan, ROC
2 Department of Life Sciences and Program in Genome Sciences, National Yang-Ming University, Taipei, Taiwan, ROC
3 Departments of Pediatrics, Chang Gung Children's Hospital, Chang Gung Memorial Hospital and Chang Gung University School of Medicine, Taoyuan, Taiwan, ROC
4 Center of General Education, National Taipei College of Nursing, Taipei, Taiwan, ROC