Ophthalmic surgery plays important role in ambulatory units.
D000556:Ambulatory Surgical Procedures / Q000191:economics*; D002140:California; D006744:Hospital Bed Capacity, 100 to 299; D006801:Humans; D013508:Ophthalmologic Surgical Procedures; D010044:Outpatient Clinics, Hospital / Q000458:organization & administration*