With the trial in its pilot stages, I joined the fieldwork team in conducting site feasibility checks, piloting the intervention across seven trial sites, and monitoring recruitment to ensure intervention fidelity (Figure 3). Over two months, I saw how implementation varied across public hospitals and community-based organizations in Jiangmen, Zhuhai, Huizhou, and Foshan. Busy hospital workflows, older patient populations, differences in regional languages (ex. Cantonese in Foshan, Hakka in Huizhou), and varying provider knowledge and enthusiasm for the intervention presented implementation challenges. In working with the fieldwork team to develop site-specific solutions that maintained fidelity and accounted for contextual factors, I learned how intervention efficacy cannot be assessed independently of intervention context.