Gray scale ultrasound in pediatric urology.
D000008:Abdominal Neoplasms / Q000175:diagnosis; D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007674:Kidney Diseases / Q000175:diagnosis; D007680:Kidney Neoplasms / Q000175:diagnosis; D010386:Pelvic Neoplasms / Q000175:diagnosis; D014465:Ultrasonics / Q000295:instrumentation; D014463:Ultrasonography; D014565:Urogenital Neoplasms / Q000175:diagnosis*; D014570:Urologic Diseases / Q000175:diagnosis*