Teófilo, V., Amaro, J., Matos, P., Pinho, P., Moreira, S., Ribeiro, R., Miller, M., Pinelas, S., Silva, F., Azevedo, C. and 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 (Apr. 2025), 217–227. DOI:https://doi.org/10.20344/amp.22540.