title: Ultrastructural studies of renal arteriolar changes in ankylosing spondylitis.
mesh_terms: D000328:Adult; D001485:Basement Membrane; D001706:Biopsy; D001794:Blood Pressure; D005455:Fluorescent Antibody Technique; D006417:Hematuria; D006801:Humans; D006818:Hyalin; D007606:Juxtaglomerular Apparatus / Q000473:pathology; D007668:Kidney / Q000098:blood supply / Q000473:pathology*; D008297:Male; D008833:Microcirculation; D008854:Microscopy, Electron; D008875:Middle Aged; D013167:Spondylitis, Ankylosing / Q000473:pathology*; D014652:Vascular Diseases / Q000473:pathology