- American Medical Associationwww.ama-assn.org
- MedlinePluswww.medlineplus.gov
- MedicalNewsTodaywww.medicalnewstoday.com/
- National Institute of Healthwww.nih.gov
- American Heart Associationwww.heart.org
- Family Doctor.orgwww.familydoctor.org
- MayoClinicwww.mayoclinic.org
