1. National Center for Complementary and Integrative Health. National Institutes of Health. Statistics on Complementary and Integrative Health Approaches. [2018-04-20] https://nccih.nih.gov/research/statistics.
2. National Center for Complementary and Integrative Health. National Institutes of Health. Statistics from the National Health Interview Survey. [2018-07-23] https://nccih.nih.gov/research/statistics/NHIS.
3. Centers for Disease Control and Prevention. National Health Statistics Reports from the National Health Interview Survey. [2018-04-20] https://www.cdc.gov/nchs/nhis/nhis_nhsr.htm.
4. Use of acupuncture in the USA: changes over a decade (2002-2012);Cui;Acupunct Med,2017
5. The Annie E. Casey Foundation. Total population by child and adult populations. [2018-07-23] https://datacenter.kidscount.org/data/tables/99-total-population-by-child-and-adult#detailed/1/any/false/870,868,18,13/39,40,41/416,417.