Epidemiology /
Gordis, Leon.
Epidemiology / Leon, Gordis. - 4th ed. - Philadelphia, PA : Saunders Elsevier, 2009. - xv, 375 p : ill.
Includes index.
1416040026 :
Epidemological methods.
Epidemology.
RA651 / .G58
Epidemiology / Leon, Gordis. - 4th ed. - Philadelphia, PA : Saunders Elsevier, 2009. - xv, 375 p : ill.
Includes index.
1416040026 :
Epidemological methods.
Epidemology.
RA651 / .G58