000 00362nam a22001457a 4500
003 KENaKMTC
005 20230504060901.0
008 230504b ||||| |||| 00| 0 eng d
020 _a0195150783
040 _cDLC
100 _aThomas Koepsell
245 _aEpidemiologic methods
_bstudying the occurrence of illness
260 _cc2003
942 _2lcc
_cBK
_xdkk
999 _c21535
_d21535