“2-yr mean citedness” is the OpenAlex field summary_stats.2yr_mean_citedness (CC0): mean citations per paper over a two-year window. It is a raw bibliometric field, not a journal rating, and is not used for default ranking.
Medicine491Pharmacology, Toxicology and Pharmaceutics233Biochemistry, Genetics and Molecular Biology39Physics and Astronomy24Chemistry17Immunology and Microbiology15Medicine: Medicine (General): Medical physics. Medical radiology. Nuclear medicine1Medicine: Therapeutics. Pharmacology1