“…For studies using multiple sources, the method of selection and synthesis of effectiveness estimates were often poorly reported or unclear (10/15). 23,26,27,32,33,37,40,44,50,52 Sensitivity analyses were of mixed quality; a probabilistic sensitivity analysis was performed in 11/34 studies, 21,23,24,27,28,40,[43][44][45]48,49 and 13/34 reported a more limited one-way sensitivity analysis only. 22,30,31,33,35,37,39,41,46,47,51,52,54 BRCA-specific cancer survival was included in 12/34 studies.…”