More information on varicose veins can be found at the following sources: Mayo Clinic: Varicose Veins http://www.mayoclinic.com/health/varicose-veins/DS00256 Medline Plus: Varicose Veins http://www.nlm.nih.gov/medlineplus/ency/article/001109.htm National Heart, Lung, and Blood Association: What Are Varicose Veins? http://www.nhlbi.nih.gov/health/health-topics/topics/vv/
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