Davies, M J Passive tube and suction drainage after elective cholecystectomy--a comparison using ultrasonography. [electronic resource] - Journal of the Royal College of Surgeons of Edinburgh Jun 1993 - 184-6 p. digital Publication Type: Comparative Study; Letter; Comment ISSN: 0035-8835 Subjects--Topical Terms: Biliary Tract--diagnostic imagingCholecystectomyDrainage--methodsEvaluation Studies as TopicHemoglobins--analysisHumansLeukocyte CountPostoperative Care--methodsSuction--methodsUltrasonography