MacDonald, Euan R Single port laparoscopic cholecystectomy--overcoming technical problems. [electronic resource] - Annals of the Royal College of Surgeons of England Mar 2010 - 167-8 p. digital Publication Type: Journal Article; Technical Report ISSN: 1478-7083 Standard No.: 10.1308/rcsann.2010.92.2.167 doi Subjects--Topical Terms: Cholecystectomy, Laparoscopic--instrumentationHumansPatient Positioning--methodsPatient SelectionUmbilicus--surgery