“OC-23 | The REPICEF Project: a school-based epidemiological study on primary headaches in children and adolescents: Agnese Onofri,1 Chiara Rosignoli,1 Vittorio Trozzi,1 Martina D’Ambrosio,1 Benedetta Germani,1 Roberta Ciuffini,2 Raffaele Ornello,1 Simona Sacco1 | 1Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila; 2Department of Clinical Medicine, Public health, Life and Environmental Sciences University of L’Aquila, Italy” (2025) Confinia Cephalalgica [Preprint]. doi:10.4081/cc.2025.15820.