Health services research in action: explaining a decrease in patient visits at a diabetes clinic.
D000328:Adult; D000367:Age Factors; D000368:Aged; D003710:Demography; D003920:Diabetes Mellitus / Q000628:therapy*; D006302:Health Services Research; D006746:Hospital Bed Capacity, 500 and over; D006801:Humans; D008875:Middle Aged; D009519:New York City; D010044:Outpatient Clinics, Hospital / Q000706:statistics & numerical data*; D010352:Patient Dropouts