Trends in Gender Differences in Self-Rated Health in Korea: Evidence from the Korean National Health and Nutrition Examination Survey, 2001-2012 Portale Verticale Trends in Gender Differences in Self-Rated Health in Korea: Evidence from the Korean National Health and Nutrition Examination Survey, 2001-2012 di BL Needham, S Kim, E Concors, JJ Wing, in Global Journal of Health Science, 2017