Fig. 7From: PD-1 high expression predicts lower local disease control in stage IV M0 nasopharyngeal carcinomaKaplan-Meier analysis of the correlation between different PD-1 expression pattern and post-treatment survival. Group A: stromal PD-1low/intratumoral PD-1low; Group B: stromal PD-1high/intratumoral PD-1high; Group C: stromal PD-1high/intratumoral PD-1lowBack to article page