- Oncology 15
- Surgery 12
- Surgical Oncology 12
- Cancer Research 11
- Biomedicine, general 10
- Medicine/Public Health, general 6
- Health Promotion and Disease Prevention 5
- Software Engineering/Programming and Operating Systems 5
- Gastroenterology 4
- Hepatology 4
- Internal Medicine 4
- Abdominal Surgery 3
- Hematology 3
- Proctology 3
- Programming Languages, Compilers, Interpreters 3
- Cardiac Surgery 2
- Computation by Abstract Devices 2
- Drug Resistance 2
- Epidemiology 2
- General Surgery 2