Normative Data on Inferior Mesenteric Vein Caliber in the Pediatric Population. - Okyay, Ozan; Binici, Serhat; Aslan, Fırat; Eryılmaz, Iklil; Yanç, Uğur; Tahiroğlu, Veysel; Beger, Burhan; Örmeci, Mehmet Tolgahan; Dündar, İlyas; Yerlikaya, Mahmut Baran; Karayıl, Ali Rıza; Beger, Orhan (Journal of Clinical Medicine, 2026)