title: Ultrasonic evaluation of intraperitoneal fluid.
mesh_terms: D001201:Ascites / Q000175:diagnosis*; D001202:Ascitic Fluid; D003937:Diagnosis, Differential; D006801:Humans; D011187:Posture; D014159:Transducers; D014465:Ultrasonics / Q000295:instrumentation; D014463:Ultrasonography