ipilimumab based treatment
ipilimumab plus SoC
squamous cell - mNSCLC - L1
squamous - mNSCLC - L1 - all population 4   
squamous - mNSCLC - L1 - PDL1 positive
squamous - mNSCLC - L1 - Wild Type (WT)
Comparator:  vs placebo plus SoC; 
Risk of bias:  low;   some concerns;   high;  NA;