The American Medical Association is the premier national organization providing timely, essential resources to empower physicians, residents and medical students to succeed at every phase of their medical lives. Physicians have entrusted the AMA to advance the art and science of medicine and the betterment of public health on behalf of patients for more than 170 years. For more information, visit ama-assn.org. For commenting policies, see our Code of Conduct: http://bit.ly/1aEMHr2