title: Observation of collagen fibers in mesangial cells.
mesh_terms: D003094:Collagen / Q000378:metabolism*; D005921:Glomerulonephritis / Q000378:metabolism / Q000473:pathology*; D006801:Humans; D007678:Kidney Glomerulus / Q000378:metabolism / Q000648:ultrastructure*
chemical_list: D003094:Collagen