Birolini, Dário Vianna Unintentionally retained foreign bodies after surgical procedures. Analysis of 4547 cases. [electronic resource] - Revista do Colegio Brasileiro de Cirurgioes Feb 2016 - 12-7 p. digital Publication Type: Journal Article; Observational Study ISSN: 1809-4546 Standard No.: 10.1590/0100-69912016001004 doi Subjects--Topical Terms: BrazilCross-Sectional StudiesForeign Bodies--epidemiologyHumansSelf ReportSurgical Procedures, Operative