anti-PD-(L)1
nivolumab followed by ipilimumab
mML - 1st line (L1)
mML - L1 - all population 7   
mML - L1 - BRAF mutant 2
mML - L1 - BRAF wild 3
Comparator:  vs ipilimumab followed by nivolumab; 
Risk of bias:  low;   some concerns;   high;  NA;