000 00340nam a2200145Ia 4500
008 220613s9999||||xx |||||||||||||| ||und||
020 _a0002-9262
100 _axxx
245 0 _aAmerican Journal of Epidemiology
250 _a155(1-6) Jan-Mar 2002
260 _bOxford University Press
300 _a582
650 _aSPM
942 _cFJ
999 _c14251
_d14251