Agriculture & Biology
acquired immunodeficiency syndrome
100%
blood transfusion
29%
retrospective studies
27%
sampling
22%
disease control
18%
methodology
11%
Medicine & Life Sciences
Acquired Immunodeficiency Syndrome
53%
Centers for Disease Control and Prevention (U.S.)
32%
Blood Transfusion
30%
Datasets
25%
Retrospective Studies
21%
Mathematics
Semiparametric Model
28%
Estimate
17%
Semiparametric Methods
17%
Nonparametric Methods
14%
Nonparametric Model
14%
Blood
14%
Statistical property
12%
Interval
7%
Engineering & Materials Science
Sampling
44%
Disease control
31%
Blood
19%
Set theory
13%
Chemical Compounds
Sampling
52%
Application
19%