00434 2200169 4500001002100000008004100021035002000062245004100082100001100123260004200134300002700176020000600203084001600209082001000225650001700235990001200252INLIS000000000001442 Eng  a0010-1024000573 aEpidemiology Man and DiseasecJhon P aJhon P aLondon :bThe Macmillan Companyc1970 axi, 339 Halamanc23 cm a. a614.4 JHO e a614.4 aEpidemiology a0001908