National Library of Medicine en Español es la división de
problemas cardiacos y circulatorios.

http://www.nlm.nih.gov/medlineplus/spanish/pulmonaryembolism.html

http://www.nlm.nih.gov/medlineplus/spanish/thrombophlebitis.html

http://www.nlm.nih.gov/medlineplus/spanish/varicoseveins.html

http://www.angio.com.mx