Clinical assessment of ultrasonography in diagnosis of abdominal tumors.
D000008:Abdominal Neoplasms / Q000175:diagnosis*; D000328:Adult; D000368:Aged; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D010190:Pancreatic Neoplasms / Q000175:diagnosis; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis; D012509:Sarcoma / Q000175:diagnosis; D014463:Ultrasonography