Ferraiuolo, F.; Tempera, F.; Iezzi, S.; De Serio, R. Use of the PPCS-R Scale to Analyse the Impact of Training and Experience on Self-Perceived Perioperative Nursing Competence: A Multicentre Cross-Sectional Study: Perioperative Competencies: Using the PPCS-R Scale. jpn 2025, 38, 3–7, s-1–s-3.