000 00397nam a2200121Ia 4500
008 251112s9999||||xx |||||||||||||| ||und||
040 _aCNCLSA
245 0 _aAmerican Journal Of Epidemiology
260 _c1983
_bThe Johns Hopkins University School Of Hygiene And Public Health Sponsored By The Society For Eqidemiologic Research
_aBaltimore
300 _aP.1-760
300 _bV.117
942 _cJRBV
999 _c24985
_d24985