Figure 1.

The process of patients screening and classification. IMN, idiopathic membranous nephropathy; SMN, secondary membranous nephropathy; IgAN, IgA nephropathy; FSGS, focal and segmental glomerulosclerosis; MCD, minimal change disease; DN, diabetic nephropathy; LN, lupus nephritis; HBV-GN, HBV-associated glomerulonephritis; ANA, antinuclear antibodies; SSA, Sjögren’s syndrome-A; SSB, Sjögren’s syndrome-B; ANCA, antineutrophil cytoplasmic antibodies; MPO, myeloperoxidase; APL, antiphospholipid antibodies; GBM, glomerular basement membrane; TPO, thyroid peroxidase; TG, thyroglobulin; TR, thyrotropin receptor; CEA, carcinoembryonic antigen; AFP, alpha-fetoprotein; CA, carbohydrate antigen; PSA, prostate specific antigen; HBsAg, hepatitis B surface antigen; HBeAg, hepatitis B e antigen; anti-HBc, anti-hepatitis B core antibodies; HCV, hepatitis virus C; HIV, human immunodeficiency virus; SM, Smith; CT, computed tomography.