000 00287nam a2200109Ia 4500
008 220809s2012 xx 000 0 und d
041 _aeng
245 _aThe american journal of surgery,Vol-203,No-1-5,Jan-June,2012,
260 _c2012
520 _aBack Volume
650 _aSurgery (617)
999 _c165702
_d165702