Table 1.

Summary of in vivo tumorigenicity of six pleural effusions and xenografts sorted into CD44^posCD24^neg/dim and CD44^posCD24^pos populations

Tumor	Tumors/injection
	250	500	1,000
SH5 xenograft
CD44posCD24pos	2/4		2/2
CD44posCD24neg/dim	3/4		4/4
CD44neg	0/2		0/3
SH12 pleural effusion
CD44posCD24pos	0/4		0/6
CD44posCD24neg/dim	2/6		2/4
SH12 xenograft
CD44posCD24pos	1/4		4/4
CD44posCD24neg/dim	3/5		1/2
SH1 pleural effusion
CD44posCD24pos			4/4
CD44posCD24neg/dim			0/3
CD44neg			0/5
SH1 xenograft
CD44posCD24pos			1/5
CD44neg		1/5
012 xenograft
CD44posCD24pos		1/5
CD44 pos CD24 neg/dim		1/5
CD44neg		0/5