_:vb50952870 . _:vb50952870 "An acquired epidermolysis bullosa that is characterized by formation of recurrent blisters secondary to minor trauma in the skin and mucosa, and has_material_basis_in the development of autoantibodies to type VII collagen."^^ . _:vb50952870 . _:vb50952870 . _:vb50952870 . _:vb50952870 . _:vb50952870 "url:https://www.nejm.org/doi/full/10.1056/NEJMicm1204895"^^ .