The American Journal of Surgery
The American Journal of Surgery > 2011 > 201 > 4 > 456-462
The American Journal of Surgery > 2011 > 202 > 2 > 233-236
The American Journal of Surgery > 2011 > 202 > 3 > 352-356
The American Journal of Surgery > 2011 > 202 > 5 > 507-510