Technology-assisted adaptive recruitment strategy for a large nation-wide COVID-19 vaccine immunogenicity study in Brunei. - Shim CY; Chan SY; Wei Y; Ghani H; Ahmad L; Sharif H; Alikhan MF; Haji Bagol S; Taib S; Tan CW; Ong XM; Wang LF; et al. (Frontiers in public health, 2022)