“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.
Medicine164Immunology and Microbiology134Medicine: Internal medicine: Neoplasms. Tumors. Oncology. Including cancer and carcinogens1Medicine: Internal medicine: Specialties of internal medicine: Diseases of the blood and blood-forming organs1