title: P013. 25(OH)D Level and headache in children sample.
authors.affiliation: Neuropsychiatric Clinic, Hospital of L'Aquila, Department of life, health and environmental sciences, University L'Aquila, L'Aquila, Italy. elisabetta.tozzialleva@univaq.it.
authors.forename: Elisabetta
authors.initials: E
authors.lastname: Tozzi
authors.affiliation: Pediatric Clinic, Hospital of L'Aquila, L'Aquila, Italy.
authors.forename: Alessandra
authors.initials: A
authors.lastname: Boncristiano
authors.affiliation: Pediatric Clinic, Hospital of L'Aquila, L'Aquila, Italy.
authors.forename: Annarita
authors.initials: A
authors.lastname: Antenucci
authors.affiliation: Pediatric Clinic, Hospital of L'Aquila, L'Aquila, Italy.
authors.forename: Simona
authors.initials: S
authors.lastname: Di Loreto
authors.affiliation: Pediatric Clinic, Hospital of L'Aquila, L'Aquila, Italy.
authors.forename: Giovanni
authors.initials: G
authors.lastname: Farello