Fig. 3
Distribution of documents per subject area related to the COV-REH. The subject areas were Medicine, Health Professions, Nursing, Neuroscience, Biochemistry, Genetics and Molecular Biology, Environmental Science, Social Sciences, Psychology, Engineering, Computer Science, Immunology and Microbiology, Multidisciplinary, Pharmacology, Toxicology and Pharmaceutics, Materials Science, Chemical Engineering, Physics and Astronomy, Agricultural and Biological Sciences, Arts and Humanities, Dentistry, Chemistry, Business, Management and Accounting, Mathematics, Energy, Earth and Planetary Sciences, Veterinary, Economics, Econometrics and Finance, and Decision Sciences