Figure 2. Controlled human infection models (CHIM) codebook.

The processes of developing a finalized codebook are shown in the figure.

We developed an initial codebook using the key themes identified from a Global Health Bioethics Network meeting and our literature review. Themes emerging from the focus group discussions and the CHIM workshop in Vietnam were incorporated. We also created open codes for excerpts not covered by the closed codes leading to the finalized CHIM codebook. LMIC: low-to-middle-income countries.