00429nam a22001337a 4500008004100000020001500041050002100056100001900077245010300096250001200199260005000211300001700261650001700278220927b        |||||||| |||| 00| 0 eng d  a0198739685  aRA650b.B46 2016  aBhopal, Raj S.  aConcepts of epidemiology:bIntegrating the ideas, theories, principles and methods of epidemiology  a3rd ed.  aUnited KingdombOxford University Pressc2016  axxxv, 441p.   aEpidemiology