IgA nephropathy.
D000293:Adolescent; D000328:Adult; D001707:Biopsy, Needle; D005455:Fluorescent Antibody Technique; D005922:Glomerulonephritis, IGA / Q000473:pathology*; D006801:Humans; D007668:Kidney / Q000473:pathology*; D008875:Middle Aged