title: Epidermolysis bullosa acquisita with negative direct immunofluorescence.
mesh_terms: D004820:Epidermolysis Bullosa / Q000276:immunology*; D005455:Fluorescent Antibody Technique; D006801:Humans; D007136:Immunoglobulins / Q000032:analysis*; D007866:Leg; D012867:Skin / Q000276:immunology*
chemical_list: D007136:Immunoglobulins