“…[43] Two studies adopted a 'limited societal' perspective, which excluded indirect costs but included out-ofpocket medical expenses along with other direct medical costs. [44,45] Some studies focused only on RIX4414, [36,37,[42][43][44] while others also included indirect comparisons with the pentavalent rotavirus vaccine [34,35,38,39,41,45] or, in some cases, the universal rotavirus vaccination program being evaluated allowed for the use of either RIX4414 or the pentavalent rotavirus vaccine. [33,40,45] A wide range of results was reported across the cost-effectiveness analyses, which appears to be related, at least in part, to the substantial heterogeneity among the models used in the studies.…”