000 00387cam a2200145 4500
001 CN64427
008 120401t xxu||||| |||| 00| 0 eng d
022 _a00284793
245 _aNew England Journal of Medicine
260 _aUS
_bMassachusetts Medical Society
310 _aWeekly
500 _aSerial
856 _uwww.NEJM.ORG
999 _c60941
_d60941