O. O. Odunfa, F. T. Ajayi, R. Vaillancourt, A. Pouliot, A. Adediran, and T. A. Lawal, “Evaluation and validation of pictographic medication instructions in a tertiary hospital in Southwest Nigeria”, WAJP, vol. 27, no. 1, pp. 9–21, Dec. 2023, doi: 10.60787/wapcp-27-1-98.