Letter to the Editor concerning: "the non-visualized appendix and secondary signs on ultrasound for pediatric appendicitis in the community hospital setting"
1 Department of Paediatric Surgery, Women's and Children's Hospital, 72 King William Street, North Adelaide, South Australia, 5006, Australia. Thomas.Rogerson@sa.gov.au.
2 Department of Paediatric Surgery, Women's and Children's Hospital, 72 King William Street, North Adelaide, South Australia, 5006, Australia.