King C, Druce KL, Nightingale P, Kay E, Basu N, Salama AD, Harper L. Predicting relapse in anti-neutrophil cytoplasmic antibody-associated vasculitis: a systematic review and meta-analysis. Rheumatol Adv Pract. 2021 Mar 9;5(3):rkab018. doi: 10.1093/rap/rkab018
Cropper ML, Haile M, Lampietti J, Poulos C, Whittington D. The demand for a malaria vaccine: evidence from Ethiopia. J Dev Econ. 2004 Oct 1;75(1):303-18.