000 00355nam a2200133Ia 4500
008 251112s9999||||xx |||||||||||||| ||und||
022 _a0028-4793
040 _aCNCLSA
245 4 _aThe New England Journal of Medicine
260 _cOctober 1, 1998
_bThe Massachusetts Medical Society
_aU.S.A
300 _aP. 941-2032
300 _bV. 339
942 _cJRBV
999 _c12975
_d12975