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Table 1 Description of studies

From: Identifying genes that contribute most to good classification in microarrays

Data set

Number of genes

Number per class

Colon cancer [11] http://microarray.princeton.edu/oncology

2000

22 normal

40 tumor

Leukemia [12] http://www.broad.mit.edu/cgi-bin/cancer/datasets.cgi

7219

47 acute lymphoblastic leukemia

45 acute myeloid leukemia

Medulloblastoma [13] http://www.broad.mit.edu/cgi-bin/cancer/datasets.cgi

7129

39 survivors over two years

21 deaths over two years

Breast cancer [14] http://data.cgt.duke.edu/west.php

7129

25 estrogen receptor positive

24 estrogen receptor negative