Table 2 The positivity of ROS1 by immunohistochemistry
From: Clinical and pathological significance of ROS1 expression in intrahepatic cholangiocarcinoma
| ROS1 staining | Number | Percent | Number | Percent | |
|---|---|---|---|---|---|
| 0 | 60 | 30.9 % | Negative | 122 | 62.9 % |
| 1+ | 62 | 32.0 % | |||
| 2+ | 70 | 36.1 % | Positive | 72 | 37.1 % |
| 3+ | 2 | 1.0 % | |||
| Total | 194 | 100 % | Total | 194 | 100 % |