The prevalence of symptoms of asthma, allergic rhinoconjunctivitis, and eczema in Korean children: Nationwide cross-sectional survey using complex sampling design

The prevalence of symptoms of asthma, allergic rhinoconjunctivitis, and eczema in Korean children: Nationwide cross-sectional survey using complex sampling design Kangmo Ahn, MD·Jihyun Kim, MD·Ho-Jang Kwon, MD·Yoomi Chae, MD·Myung-Il Hahm, PhD·KeeJae Lee, PhD· Yong Mean Park MD·So-Yeon Lee, MD·Manyong Han, MD·Woo Kyung Kim, MD Department of Pediatrics, Sungkyunkwan University School of Medicine, Seoul, Department of Preventive Medicine, Dankook University College of Medicine, Cheonan, Department of Occupational and Environmental Medicine, Dankook University College of Medicine, Cheonan, Department of Health Administration and Management, Soonchunhyang University, Asan, Department of Information and Statistics, Korea National Open University, Seoul, Department of Pediatrics, Konkuk University School of Medicine, Seoul, Department of Pediatrics, Hallym University College of Medicine, Anyang, Department of Pediatrics, CHA University College of Medicine, Seongnam, Department of Pediatrics, Inje University College of Medicine, Seoul, Korea