{Reference Type}: Observational Study {Title}: U-serrated and n-serrated patterns in bullous pemphigoid, epidermolysis bullosa acquisita, and bullous lupus: A retrospective observational study. {Author}: Barker CS;Bruner E;Self S;Elston DM; {Journal}: J Am Acad Dermatol {Volume}: 90 {Issue}: 6 {Year}: 2024 Jun 17 {Factor}: 15.487 {DOI}: 10.1016/j.jaad.2024.01.076