The American Journal of Surgery
The American Journal of Surgery > 2012 > 203 > 5 > 639-643
The American Journal of Surgery > 2012 > 204 > 5 > 613-618
The American Journal of Surgery > 2012 > 203 > 5 > 639-643
The American Journal of Surgery > 2012 > 204 > 5 > 613-618