What is dan blazer?

As an AI language model, I don't have access to information about individual people unless it has been published or shared online. However, based on my search, Dan Blazer is a clinical psychologist and psychiatric epidemiologist with expertise in geriatric mental health and late-life depression. He is the JP Gibbons Professor of Psychiatry and Behavioral Sciences at Duke University Medical Center and has been involved in numerous research studies aimed at improving access to mental health care services, identifying risk factors for depression, and developing evidence-based interventions for addressing mental health problems in older adults.