1. Annual Estimates of the Resident Population for Selected Age Groups by Sex for the United States: April 1, 2010 to July 1, 2019,2020
2. Bright Futures: Guidelines for Health Supervision of Infants, Children, and Adolescents,,2017
3. Diagnostic tests for latent tuberculosis infection;Haas;Clin. Chest. Med.,2019
4. Centers for Disease Control and Prevention (2019) Child and adolescent immunization schedule (birth through 18 years). Available at: https://www.cdc.gov/vaccines/schedules/hcp/imz/child-adolescent.html. Accessed 28 December 2020.
5. Assessment of iron deficiency in US preschool children and nonpregnant females of childbearing age: National Health and Nutrition Examination Survey 2003–2006;Cogswell;Am. J. Clin. Nutr.,2009