Barker, D. J. P.
Epidemiology in medical practice - 4th ed. - Edinburgh Churchill Livingstone 1990 - viii,163 p. 22 cm.
0443037833
EPIDEMIOLOGY
614.4 / BAR
Epidemiology in medical practice - 4th ed. - Edinburgh Churchill Livingstone 1990 - viii,163 p. 22 cm.
0443037833
EPIDEMIOLOGY
614.4 / BAR