Fig. 4From: Closed system RT-qPCR as a potential companion diagnostic test for immunotherapy outcome in metastatic melanomaPD-L1 and PD-L2 combination predicts good survival outcome in anti-PD-1 treated melanoma patients. Kaplan–Meier plots of a progression-free survival and b overall survival of anti-PD-1 treated melanoma patients based on combined L1/L2 transcript expression by RT-qPCR. Low and high statuses were defined using X-Tile cut pointBack to article page