Table I.

Clinicopathological information and EML4-ALK fusions detected in immunohistochemically ALK-positive NSCLCs.

No.	Age	Gender	Histopathological diagnosis	EML4-ALK transcript
1	48	Female	Adenocarcinoma	Variant 1
2	49	Male	Adenocarcinoma	Variant 1
3	66	Male	Adenocarcinoma	Variant 1
4	46	Female	Adenocarcinoma	Variant 2
5	57	Male	Adenocarcinoma	Variant 2
6	79	Male	Adenocarcinoma	Variant 2
7	33	Female	Adenosquamous carcinoma	Variants 3a and 3b
8	63	Female	Adenocarcinoma	Variants 3a and 3b
9	83	Male	Adenocarcinoma	Variants 3a and 3b
10	58	Male	Adenocarcinoma	A novel varianta
11	36	Female	Adenocarcinoma	Not examinedb
12	69	Female	Squamous cell carcinoma	Not examinedb

^aExon 14 of EML4 is connected to a 2-bp fragment that in turn is ligated to the nucleotide at position 53 of exon 20 of ALK.

^bDue to the absence of an RNA sample, RT-PCR analysis for ALK fusions was not performed.