title: [Sources of hospital infection in surgical wards].
mesh_terms: D000391:Air Microbiology; D001424:Bacterial Infections / Q000209:etiology*; D003428:Cross Infection / Q000209:etiology*; D004865:Equipment and Supplies, Hospital; D006801:Humans; D011044:Poland; D013503:Surgery Department, Hospital; D013530:Surgical Wound Infection / Q000209:etiology*
vernacular_title: Badanie źródeł zakazenia szpitalnego na oddziałach chirurgicznych.