title: Facial swelling.
authors.affiliation: Department of Internal Medicine, Hospital San Pedro, La Rioja, 26007, Spain. email: ramonbaezat@yahoo.es.
authors.forename: R
authors.initials: R
authors.lastname: Baeza-Trinidad
authors.affiliation: Department of Internal Medicine, Hospital San Pedro, La Rioja, 26007, Spain. email: ramonbaezat@yahoo.es.
authors.forename: M
authors.initials: M
authors.lastname: Gomez-Del Mazo