Hosking SW, Smart HL, Johnson AG, Triger DR (February 1989). "Anorectal varices, haemorrhoids, and portal hypertension". Lancet. Originally published as Volume 1, Issue 8634. 1 (8634): 349–352. doi:10.1016/S0140-6736(89)91724-8. PMID2563507. S2CID29675644.
Stamm ER, Meier JM, Pokharel SS, Clark T, Glueck DH, Lind KE, Roberts KM (October 2016). "Normal main portal vein diameter measured on CT is larger than the widely referenced upper limit of 13 mm". Abdominal Radiology. 41 (10): 1931–1936. doi:10.1007/s00261-016-0785-9. PMID27251734. S2CID19845427.
Hosking SW, Smart HL, Johnson AG, Triger DR (February 1989). "Anorectal varices, haemorrhoids, and portal hypertension". Lancet. Originally published as Volume 1, Issue 8634. 1 (8634): 349–352. doi:10.1016/S0140-6736(89)91724-8. PMID2563507. S2CID29675644.
Stamm ER, Meier JM, Pokharel SS, Clark T, Glueck DH, Lind KE, Roberts KM (October 2016). "Normal main portal vein diameter measured on CT is larger than the widely referenced upper limit of 13 mm". Abdominal Radiology. 41 (10): 1931–1936. doi:10.1007/s00261-016-0785-9. PMID27251734. S2CID19845427.
Hosking SW, Smart HL, Johnson AG, Triger DR (February 1989). "Anorectal varices, haemorrhoids, and portal hypertension". Lancet. Originally published as Volume 1, Issue 8634. 1 (8634): 349–352. doi:10.1016/S0140-6736(89)91724-8. PMID2563507. S2CID29675644.
Stamm ER, Meier JM, Pokharel SS, Clark T, Glueck DH, Lind KE, Roberts KM (October 2016). "Normal main portal vein diameter measured on CT is larger than the widely referenced upper limit of 13 mm". Abdominal Radiology. 41 (10): 1931–1936. doi:10.1007/s00261-016-0785-9. PMID27251734. S2CID19845427.