American Academy of Pediatrics. (2022). Developmental surveillance and screening. https://www.aap.org/en/patient-care/developmental-surveillance-and-screening-patient-care/
Centers for Disease Control and Prevention. (2022, December 12). Child development basics. https://www.cdc.gov/ncbddd/childdevelopment/facts.html
Centers for Disease Control and Prevention. (2022, December 13). Child and adolescent immunization schedule. https://www.cdc.gov/vaccines/schedules/hcp/imz/child-adolescent.html
Erikson, E. H. (1963). Childhood and society (2nd Ed.). New York: Norton.
Immunize Action Coalition. (2020). How to administer intramuscular and subcutaneous vaccine injections. https://www.immunize.org/catg.d/p2020.pdf
Kohlberg, L. (1981). The philosophy of moral development: Moral stages and the idea of justice. Harper & Row.
Lantz, S. & Ray, S. (2022) Freud developmental theory. National Institutes of Health. https://www.ncbi.nlm.nih.gov/books/NBK557526/
Malik, F. & Marwaha, R. (2023). Cognitive development. National Institutes of Health. https://www.ncbi.nlm.nih.gov/books/NBK537095/
Office of Disease Prevention and Health Promotion. (2023). Healthy people 2030. https://health.gov/healthypeople/objectives-and-data/browse-objectives/preventive-care
U.S. Department of Health and Human Services. (2022, December 14). Vaccine types. https://www.hhs.gov/immunization/basics/types/index.html