Epidemiology /
Gordis, Leon.
Epidemiology / Leon Gordis. - 3rd ed. ,updated ed. - Philadelphia : Elsevier, 2004. - xi, 335 p. : ill. ; 25 cm.
1416025308 (pbk.)
Epidemiology.
Epidemiology / Leon Gordis. - 3rd ed. ,updated ed. - Philadelphia : Elsevier, 2004. - xi, 335 p. : ill. ; 25 cm.
1416025308 (pbk.)
Epidemiology.