Maram Mohammed Fathi AHMED. Determination of Portal Vein Diameter and Velocity Using Ultrasound. New Frontiers in Medicine and Medical Research Vol. 1, [S. l.], p. 42–76, 2021. DOI: 10.9734/bpi/nfmmr/v1/11207D. Disponível em: https://stm.bookpi.org/NFMMR-V1/article/view/2785. Acesso em: 13 aug. 2026.