Lerona PT, Tewfik HH (June 1975). "Bifurcation level of the aorta: landmark for pelvic irradiation". Radiology. 115 (3): 735. doi:10.1148/15.3.735. PMID1129492.
Attwell, Lukas; Rosen, Sarah; Upadhyay, Bhavin; Gogalniceanu, Peter (5 June 2015). "The umbilicus: a reliable surface landmark for the aortic bifurcation?". Surgical and Radiologic Anatomy. 37 (10): 1239–1242. doi:10.1007/s00276-015-1500-1. PMID26044782.
nih.gov
pubmed.ncbi.nlm.nih.gov
Lerona PT, Tewfik HH (June 1975). "Bifurcation level of the aorta: landmark for pelvic irradiation". Radiology. 115 (3): 735. doi:10.1148/15.3.735. PMID1129492.
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Attwell, Lukas; Rosen, Sarah; Upadhyay, Bhavin; Gogalniceanu, Peter (5 June 2015). "The umbilicus: a reliable surface landmark for the aortic bifurcation?". Surgical and Radiologic Anatomy. 37 (10): 1239–1242. doi:10.1007/s00276-015-1500-1. PMID26044782.