Fig. 1From: “They are gaining experience; we are gaining extra hands”: a mixed methods study to assess healthcare worker perceptions of a novel strategy to strengthen human resources for HIV in South AfricaOverview of the expanded Theoretical Framework of Acceptability (TFA) domains used in mixed methods analysis. Original domains are as defined by Sekhon, et al. [39], with addition of one domain, ‘facility fit’, influenced by the definition of ‘appropriate’ by Proctor, et al. [25]. Domains were grouped into three groups by this study’s authorsBack to article page