title: Gallbladder stones in patients with negative gallbladder x-rays.
mesh_terms: D000469:Alkaline Phosphatase / Q000097:blood; D000765:Anesthesia, Conduction; D001663:Bilirubin / Q000097:blood; D002758:Cholangiography; D002764:Cholecystitis / Q000175:diagnosis*; D002765:Cholecystography; D002769:Cholelithiasis / Q000175:diagnosis* / Q000000981:diagnostic imaging; D003951:Diagnostic Errors; D004322:Drainage; D004386:Duodenum; D006801:Humans; D010195:Pancreatitis / Q000209:etiology; D012633:Secretin
chemical_list: D012633:Secretin; D000469:Alkaline Phosphatase; D001663:Bilirubin