pertuzumab based treatmenttrastuzumab based treatment
pertuzumab plus trastuzumab pertuzumab plus trastuzumab plus docetaxel trastuzumab plus endocrine therapy
la/mBC - HER2 positive - 1st Line (L1) 5        
Comparator:  vs trastuzumab;   vs trastuzumab plus docetaxel;   vs trastuzumab plus chemotherapy; 
Risk of bias:  low;   some concerns;   high;  NA;