title: Lack of relationship between blood groups and clinical outcome (body surface area affected) in patients with pemphigus vulgaris.
authors.affiliation: Dermatology Department, Hospital General de México, Mexico. E-mail: atsdermahgm@gmail.com.
authors.forename: Andrés
authors.initials: A
authors.lastname: Tirado-Sánchez
authors.forename: Rosa María
authors.initials: RM
authors.lastname: Ponce-Olivera