Michael Cummings, Ph.D. (IMAGE) Medical University of South Carolina Caption Dr. Michael Cummings has studied smoking cessation and treatment options for over four decades. Credit MUSC Hollings Cancer Center Usage Restrictions See credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.