Koch, C W Ultrasonic diagnostic examination of liver, gallbladder, pancreas and spleen. [electronic resource] - The Netherlands journal of medicine 1976 - 62-73 p. digital Publication Type: Journal Article ISSN: 0300-2977 Subjects--Topical Terms: False Negative ReactionsFalse Positive ReactionsGallbladder Diseases--diagnosisHumansLiver Diseases--diagnosisPancreatic Diseases--diagnosisSplenic Diseases--diagnosisUltrasonics--instrumentationUltrasonography