title: Prevalence of infectious agents in patients with systemic sclerosis:defining the control group.
authors.affiliation: Department of General and Specialistic Medicine, Gastroenterology-U, City of Health and Science of Turin, Turin, Italy.
authors.forename: Davide Giuseppe
authors.initials: DG
authors.lastname: Ribaldone
authors.affiliation: Unit of Gastroenterology Molinette Hospital, Turin, Italy.
authors.forename: Rinaldo
authors.initials: R
authors.lastname: Pellicano
mesh_terms: D035061:Control Groups; D006801:Humans; D015995:Prevalence; D012595:Scleroderma, Systemic / Q000453:epidemiology*