000 00264nam a2200133Ia 4500
999 _c11523
_d11523
082 _a614.5
_bGOR
100 _aGordis,L.
245 0 _aEpidemiology
250 _a3
260 _bElsevier
_c2004
300 _eNO
_a335,P.
650 _aEpidermiology
942 _cBKS