Teófilo, V., Amaro, J., Matos, P., Pinho, P., Moreira, S., Ribeiro, R., Miller, M., Pinelas, S., Silva, F., Azevedo, C., & Norton, P. (2025). Hesitancy and Refusal of the COVID-19 Vaccine Among Healthcare Professionals: A Cross-Sectional Study in a Portuguese Hospital. Acta Médica Portuguesa, 38(4), 217–227. https://doi.org/10.20344/amp.22540