Hartley L, Harold S, Hawe E. The efficacy, safety, and immunogenicity of plague vaccines: a systematic literature review. CRIMMU. 2023 Nov 1;4:100072. doi: 10.1016/j.crimmu.2023.100072
Mansfield CA. A consistent method for calibrating contingent value survey data. South Econ J. 1998;64(3):665-81.