title: Letter: histological assessment of disease activity in ulcerative colitis--the problem of score evaluation and validation.
authors.affiliation: Institute of Pathology, Spedali Civili, Brescia, Italy.
authors.forename: V
authors.initials: V
authors.lastname: Villanacci
authors.affiliation: Institute of Pathology, Spedali Civili, Brescia, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Salemme
authors.affiliation: Gastroenterology Section, Department of Medicine, University of Perugia School of Medicine, Perugia, Italy. gabassot@tin.it.
authors.forename: G
authors.initials: G
authors.lastname: Bassotti
authors.affiliation: Gastroenterology Section, Perugia General Hospital, Perugia, Italy.
authors.forename: E
authors.initials: E
authors.lastname: Antonelli
mesh_terms: D003093:Colitis, Ulcerative / Q000473:pathology*; D006801:Humans; D008297:Male