1. Department of Endocrinology, The First People's Hospital of Yunnan Province, Kunming, Yunnan 650032, P.R. China
2. Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, USM, 11800 Penang, Malaysia
3. School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, 16150 Kelantan, Malaysia