The initial urine analysis for eligibility should be less than or equal to grade 1 proteinuria, grade 0 hematuria and no abnormal sediment. Any positive protein, including trace values, should be evaluated by a 24-hour urine less than or equal to 1 gram per 24 hours. Any other abnormalities in the sediment or the presence of hematuria should be evaluated by a nephrologist for evidence of underlying renal pathology. Patients may be eligible if the underlying cause of the abnormality is determined to be non-renal.