NewYork-Presbyterian Hospital is an academic medical center located in New York City. NYP provides care in every medical specialty and is ranked among the top ten hospitals in America by US News and World Report's annual "America's Best Hospitals" survey. In addition to offering expert clinical care, our physicians conduct basic science and clinical trial research through our two affiliated, Ivy League medical colleges: Columbia University College of Physicians and Surgeons and Weill Cornell Medical College. These videos contain general information about health care topics.They do not provide medical advice and are not to be used or relied on for diagnosis or treatment. They do not take the place of instructions or advice from your doctor or other health care providers. Talk to your doctor or other health care provider before making a health care decision.