MacMahon, Brian. 4 0

Epidemiology principles and methods 6 6 [by] Brian MacMahon [and] Thomas F. Pugh. - [1st ed.] - - ix, 376 p. illus., form, maps. 24 cm. - - - - - . - . - 0 . - . - 0 .



Bibliography: p. 333-361.



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