title: Weekend effect in non-variceal upper gastrointestinal bleeding: data from nine italian gastrointestinal units.
authors.forename: Marco
authors.initials: M
authors.lastname: Soncini
authors.forename: Fausto
authors.initials: F
authors.lastname: Chilovi
authors.forename: Omero
authors.initials: O
authors.lastname: Triossi
authors.forename: Pietro
authors.initials: P
authors.lastname: Leo
mesh_terms: D000368:Aged; D016099:Endoscopy, Gastrointestinal; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000453:epidemiology* / Q000209:etiology*; D006801:Humans; D007558:Italy / Q000453:epidemiology; D008297:Male; D011446:Prospective Studies; D012307:Risk Factors