000 00334nam a2200133Ia 4500
008 160509s9999 xx 000 0 und d
020 _a0-443-01851-0
100 _aBarker, D J P
245 _aEpidemiology in Medical Practice
250 _a2nd Ed.
260 _bChurchill Livingstone
_c1976
300 _a151p.
650 _aEpidemiology
999 _c2908
_d2908