title: Professional Standards Review Organization studies length of stay for cataract extraction in District of Columbia hospitals.
mesh_terms: D002387:Cataract Extraction / Q000706:statistics & numerical data*; D002391:Catchment Area, Health; D004219:District of Columbia; D006761:Hospitals / Q000706:statistics & numerical data*; D006801:Humans; D007902:Length of Stay; D011366:Professional Review Organizations; D014481:United States; D014600:Utilization Review