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 |