J. Malcolm O. Arnold

J. Malcolm O. Arnold works in Heart Failure & Transplant affiliated with Western University.

J. Malcolm O. Arnold was a cardiologist at London Health Sciences Centre and Professor of Medicine at Western University in London, Ontario. He served as the inaugural chair of the Canadian Cardiovascular Society Heart Failure Guidelines Program and co-founded the Canadian Heart Failure Network. He conducted research on heart failure treatments and drug interactions, including the discovery of grapefruit juice effects on medications.