Table 3 Most popular categories ranked by numbers of articles

Orthopedics

44

Clinical Neurology

34

Engineering, Biomedical

24

Materials Science, Biomaterials

23

Cell & Tissue Engineering

14

Cell Biology

14

Biochemistry & Molecular Biology

13

Surgery

5

Anatomy & Morphology

5

Immunology

4

Rheumatology

4

Biochemical Research Methods

3

Medicine, Research & Experimental

3

Genetics & Heredity

3