🌐EnglishEnglishDeutschEspañolItalianoNederlandsSvenskaРусскийEntityQ328549· pop 8Modest Andreyevich Korffhistorian (1800-1876)Recent publications · Crossref5 total works indexedGrading the severity of chronic pain · 1992 · cited 2,487xPrevalence of Chronic Pain and High-Impact Chronic Pain Among Adults — United States, 2016 · 2018 · cited 2,119xOrganizing Care for Patients with Chronic Illness · 1996 · cited 2,043xInterpreting Change Scores for Pain and Functional Status in Low Back Pain · 2008 · cited 1,701xDataWarrior: An Open-Source Program For Chemistry Aware Data Visualization And Analysis · 2015 · cited 1,574xvia Crossref · CC0