This article does not provide tax, investment, legal, or medical advice. It is intended for informational purposes only. This article is not a substitute for professional medical advice, diagnosis or treatment. Never ignore professional medical advice in seeking treatment because of the information presented. Mount Sinai and Dubin Breast Center are not affiliates or subsidiaries of Guardian. Links to external sites are provided for your convenience in locating related information and services. Guardian, its subsidiaries, agents, and employees expressly disclaim any responsibility for and do not maintain, control, recommend, or endorse third-party sites, organizations, products, or services and make no representation as to the completeness, suitability, or quality thereof.