AN INTRODUCYION TO EPIDEMIOLOGY.
TIMMRECK.
AN INTRODUCYION TO EPIDEMIOLOGY. TOMAS, C. TIMMRECK. - BOSTON. JONES &BARTLETT. 1994 - xvii,477p.ill. pbk.
0867208228.
EPIDEMIOLOGY.
EPIDEMIOLOGIC METHOD.
RA651. T5 1994.
AN INTRODUCYION TO EPIDEMIOLOGY. TOMAS, C. TIMMRECK. - BOSTON. JONES &BARTLETT. 1994 - xvii,477p.ill. pbk.
0867208228.
EPIDEMIOLOGY.
EPIDEMIOLOGIC METHOD.
RA651. T5 1994.