000 00343nam a2200109Ia 4500
008 160509s9999 xx 000 0 und d
020 _a0028-4793
245 _aNew England Journal of Medicine: 2004: Vol.351(21- 24): Shelf 16.4
260 _bMassachusetts Medical Society
_c2004
300 _a2147-2568p.
650 _aNew England Journal of Medicine
999 _c8588
_d8588