title: The viewbox.
mesh_terms: D002764:Cholecystitis / Q000175:diagnosis; D002769:Cholelithiasis / Q000175:diagnosis; D005705:Gallbladder Diseases / Q000175:diagnosis*; D005706:Gallbladder Neoplasms / Q000175:diagnosis; D006801:Humans; D014463:Ultrasonography