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b'Oncologist Stephen Graziano, MD, Oncologist Stephen Graziano, MD, discusses immunotherapy as a cancer treatment discusses immunotherapy as a cancer treatment. Psychiatrists Brian Johnson, MD, and Sunny Aslam, MD, talk about. Psychiatrists Brian Johnson, MD, and Sunny Aslam, MD, talk about helping people off of opioids and other addictions. helping people off of opioids and other addictions. Occupational pathologists Jerrold Abraham, MD, and Soma Sanyal, MD, Occupational pathologists Jerrold Abraham, MD, and Soma Sanyal, MD, explain their role in researching black lung disease. explain their role in researching black lung disease.'