Table 2 In vivo Tumorigenicity of Side Population Isolated cells.

SP^low

1,000

2/5

1/3,522

^{(n = 18)}

5,000

2/4

(1/1,661~1/7,466)

10,000

6/6

50,000

3/3

SP^mid

1,000

1/5

1/3,963

^{(n = 15)}

5,000

4/4

(1/1,762 ~1/8,914)

10,000

3/4

50,000

2/2

SP^hi

1,000

2/4

1/3,252

^{(n = 14)}

5,000

4/4

(1/1,356~1/7,805)

10,000

2/3

50,000

2/2

Non-

1,000

1/4

1/25,952

SP

5,000

3/4

(1/9,762~1/68,998)

^{(n = 14)}

10,000

1/3

50,000

1/3