Fig. 1From: Expression of CC chemokine receptor 9 predicts poor prognosis in patients with lung adenocarcinomaExpression of CCR9 in lung adenocarcinoma and normal lung tissues based on immunohistochemistry. a Negative expression in adjacent normal lung tissue; b Negative expression in lung adenocarcinoma tissue; c Positive expression of CCR9 in lung adenocarcinoma tissue; d Strong positive expression of CCR9 in lung adenocarcinoma tissue. CCR9, CC chemokine receptor9Back to article page