|
1
|
|
|
|
RA652.2
.C55
F6
|
Clinical epidemiology : The essentials/Robert H. Flitcher, Suzanne W. Fletcher, Edward H. Wagner
|
London, [ United Kingdom ] : Williams and Wilkins , 1996
|
Fletcher, Robert H.
|
0683032690
|
35188
|
|
2
|
|
|
|
RA652.2
.C55
F6
|
Clinical epidemiology : the essentials/Robert H. Fletcher, Suzanne W. Fletcher
|
Maryland, [ United States ] : Lippincott Williams and Wilkins , 2005
|
Fletcher, Robert H.
|
0781752159
|
83844
|