2[3]Pacella SJ,Harkins D,Butz D,et al.Referral patterns and severity distribution of burn care:implications for burn centers and surgical training.Ann Plast Surg,2005,54(4):412-9.
3[4]Gabram SG,Hoenig J,Creech S,et al.Medical student electives in general surgical subspecialties.Am J Surg,2004,188(3):246-9.