Rosmond Adams1, Yiing-Jenq Chou2, Christy Pu3. 1. Ministry of Health, Wellness and Environment, Ministerial Building, Halifax Street, Kingstown, St. Vincent and the Grenadines. 2. Department of Public Health, National Yang Ming University, 155, Sec.2, Linong Street, Taipei, 112, Taiwan. 3. Department of Public Health, National Yang Ming University, 155, Sec.2, Linong Street, Taipei, 112, Taiwan. cypu@ym.edu.tw.