Affiliation: | Oita University, Yufu, Oita, Japan (T. Yahiro, T. Wada, T. Matsumoto, A. Nishizono, K. Ahmed); ;Ministry of Health, Royal Government of Bhutan, Thimphu, Bhutan (S. Wangchuk, C. Dorji); ;Jigme Dorji Wangchuk National Referral Hospital, Thimphu (M.L. Mynak); ;University of Medical Sciences, Royal Government of Bhutan, Thimphu (K.P. Tshering) |