title: Erratum to: Hidden musculoskeletal involvement in inflammatory bowel disease: a multicenter ultrasound study.
authors.affiliation: Rheumatology Department, Centro Hospitalar e Universitário de Coimbra, Praceta Prof Mota Pinto, Coimbra, 3000-075, Portugal. ocisvor@gmail.com.
authors.forename: João
authors.identifier: http://orcid.org/0000-0002-2695-5257
authors.initials: J
authors.lastname: Rovisco
authors.affiliation: Rheumatology Department, Centro Hospitalar e Universitário de Coimbra, Praceta Prof Mota Pinto, Coimbra, 3000-075, Portugal.
authors.forename: Cátia
authors.initials: C
authors.lastname: Duarte
authors.affiliation: Rheumatology Unit, L. Sacco University Hospital, Milan, Italy.
authors.forename: Alberto
authors.initials: A
authors.lastname: Batticciotto
authors.affiliation: Rheumatology Unit, L. Sacco University Hospital, Milan, Italy.
authors.forename: Piercarlo
authors.initials: P
authors.lastname: Sarzi-Puttini
authors.affiliation: Clinica Reumatologica, Università Politecnica delle Marche, Jesi, Ancona, Italy.
authors.forename: Antonella
authors.initials: A
authors.lastname: Draghessi
authors.affiliation: Gastroenterology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
authors.forename: Francisco
authors.initials: F
authors.lastname: Portela
authors.affiliation: Clinica Reumatologica, Università Politecnica delle Marche, Jesi, Ancona, Italy.|Division of Musculoskeletal and Rheumatic diseases, National Institute of Rehabilitation, Mexico city, Mexico.
authors.forename: Marwin
authors.initials: M
authors.lastname: Gutierrez