1. Korea Health Statistics 2009: Korea National Health and Nutrition Examination Survey (KNHANES IV-3),2010
2. Do dietary supplements improve micronutrient sufficiency in children and adolescents?;Bailey;J Pediatr,2012
3. Dietary supplement usage among elementary school children in Taiwan: Their school performance and emotional status;Chen;Asia Pac J Clin Nutr,2007
4. Dietary Supplement Research Portfolio at the NIH, 2009–2011;Garcia-Cazarin;J Nutr,2014
5. Food & Drug Statistical Yearbook,2014