- Centers for Disease Control and Prevention: www.cdc.gov
- Centers for Medicare & Medicaid Services: www.cms.gov
- World Health Organization: www.who.int
- Family Doctor: www.familydoctor.org
- American Heart Association: www.heart.org
- American Lung Association: www.lung.org
- American Sleep Association: www.sleepassociation.org
- American Diabetes Association: www.diabetes.org
- American Urological Association: www.auanet.org