000 00304nam a2200109Ia 4500
008 220809s2012 xx 000 0 und d
041 _aeng
245 _aAmerican journal of public health,Vol-102,No-1-4,Jan-April,2012,
260 _c2012
520 _aBack Volume
650 _aCommunity Medicine (614.44)
999 _c165508
_d165508