| Dementia and Cognitive Impairment Research | 60 |
| Canadian Identity and History | 34 |
| Historical Studies and Socio-cultural Analysis | 21 |
| Urban Transport and Accessibility | 19 |
| International Law and Aviation | 13 |
| Intensive Care Unit Cognitive Disorders | 10 |
| Stroke Rehabilitation and Recovery | 10 |
| Atmospheric Ozone and Climate | 10 |
| Noise Effects and Management | 9 |
| Air Quality and Health Impacts | 9 |
| French Urban and Social Studies | 9 |
| History of Science and Medicine | 9 |
| Frailty in Older Adults | 9 |
| Traumatic Brain Injury Research | 8 |
| Blood Pressure and Hypertension Studies | 8 |
| Cerebrovascular and Carotid Artery Diseases | 8 |
| Atmospheric chemistry and aerosols | 8 |
| Transportation Planning and Optimization | 7 |
| Vietnamese History and Culture Studies | 7 |
| Law, logistics, and international trade | 7 |