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  1. Varicose veins - Symptoms and causes - Mayo Clinic

  2. Varicose Veins: Causes, Symptoms and Treatment - Cleveland Clinic

  3. Varicose veins - Diagnosis and treatment - Mayo Clinic

  4. Varicose Veins | Johns Hopkins Medicine

  5. Varicose (Spider) Veins: Causes, Symptoms, and Treatments

  6. Vericose Vein Basics and Causes - WebMD

  7. Varicose Veins - Varicose Veins | NHLBI, NIH

  8. Varicose Veins - Heart and Blood Vessel Disorders - Merck …

  9. Varicose Veins - Cardiovascular Disorders - Merck Manual …

  10. Varicose Veins > Fact Sheets > Yale Medicine