Urologist Urologist Scott Wiener, MD, discusses the diagnosis and treatment of kidney stones Scott Wiener, MD, discusses the diagnosis and treatment of kidney stones. Registered dietitian nutritionist. Registered dietitian nutritionist Maria Erdman explains the impact of lung cancer on nutrition Maria Erdman explains the impact of lung cancer on nutrition. . Timothy Jennings-Bey tells about the Community Trauma Response Team Timothy Jennings-Bey tells about the Community Trauma Response Team. .