1. John A. Burns School of Medicine, University of Hawai’i , Honolulu, HI 96813 , USA
2. Diabetes Research and Education Center of the Pacific , Honolulu, HI 96813 , USA
3. Department of Medicine, The Queen's Medical Center , Honolulu, HI 96813 , USA
4. Nancy Atmospera-Walch School of Nursing, University of Hawai’i , Honolulu, HI 96822 , USA