Erythema annulare centrifugumis characterized by annular red plaques that expand centrifugally (Fig. 16.18). There are two forms of the disease: (1) a superficial form with a trailing edge of white scale, and (2) a deep form with infiltrated borders and no scale. The most common locations...
Lupus nephritis patients were identified by the ICD-9-CM code 583.81, whereas pneumococcal vaccination was identified by the ICD-9-CM code V03.82. NIS is the largest all-payer inpatient care database in the United States with approximately 8 million hospitalizations each year. Discharge weights ...