000 00286nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aInternational Journal of Epidemiology
260 _aOxford University Press
_bOxford
_c1 May-31 Aug,2009
362 _a38-38
_b03-Apr
942 _2ddc
_cJ
999 _c181063
_d181063