TI - The Role of Optic Nerve Sheath Diameter in Differential Diagnosis in Patients with Headache, A Prospective, Randomized Controlled Study AU - İşlek Yüksel, A. AU - Selvi, F. AU - Yüksel, S. AU - Avcı, M. AU - Çalışkan Günay, G. AU - Kozacı, N. SO - Global Emergency and Critical Care 2025;4:23-29. DO - 10.4274/globecc.galenos.2024.91300