Corrigendum: Medical residency in Portugal: a cross-sectional study on the working conditions - Chen-Xu, José; Miranda Castilho, Bruno; Moura Fernandes, Bruno; Silva Gonçalves, Diana; Ferreira, André; Gonçalves, Ana Catarina; Ferreira Vieira, Maycoll; Silva, Andreia M.; Borges, Fábio; Paes Mamede, Mónica (Frontiers in Health Services, 2025)