Table 3.

Tumor-containing fragment number and HER2-positive fragment number in HER2 IHC positive patients

Number of tumor fragments	Total	Number of HER2 3+ fragments	n
1	1	1	1
2	3	1	2
		2	1
3	12	1	1
		2	2
		3	9
4	46	1	7
		2	6
		3	10
		4	23
5	20	1	0
		2	6
		3	5
		4	1
		5	8
6	18	1	2
		2	2
		3	4
		4	4
		5	1
		6	5

“Total” refers to the total number of HER2 positive (scored 3+) cases with different number of tumor-containing fragments

“n” refers to the number of cases with different number of HER2 positive (scored 3+), fragments