graph Evidence gap map comparisons
atezolizumab based treatmentnivolumab based treatmentanti-PD-(L)1pembrolizumab based treatmentsintilimab based treatment
atezolizumab plus bevacizumab nivolumab alone pembrolizumab based treatment pembrolizumab alone pembrolizumab plus lenvatinib sintilimab
Comparator:  vs sorafenib;   vs lenvatinib;   vs placebo; 
Risk of bias:  low;   some concerns;   high;  NA;