Barker D. J. P., Hall A. J.
Practical epidemiology - 4th ed. - Edinburgh Churchill Livingstone 1991 - 173 p. 22 cm. - .
Epidemiology
0443044244
Epidemiology
WA105 / BAR
Practical epidemiology - 4th ed. - Edinburgh Churchill Livingstone 1991 - 173 p. 22 cm. - .
Epidemiology
0443044244
Epidemiology
WA105 / BAR