1. Gullace G (1991) Studio Eco-Doppler dell'aorta addominale: modificazioni morfofunzionali in relazione all'età. Giorn Ital Ecogr Cardiovasc 1/1:49–56.
2. Pinheiro L, Jain S, Nanda NC (1991) Conventional and Color Doppler evaluation of abdominal vessels. In: Doppler Echocardiography, Nanda NC (ed). Lea and Febiger: Philadelphia, PA, pp 357–364.
3. Gross CM, Wann LS, Cooper JW, Nanda NC, Rogers WB (1993) Conventional and Color Doppler assessment of aortic regurgitation. In: Doppler Echocardiography, Nanda NC (ed). Lea and Febiger: Philadelphia, PA, pp 139–144.
4. Takenada K, Dabestani A, Gardin JM, et al (1986) A simple Doppler echocardiographic method for estimating severity of aortic regurgitation. Am J Cardiol 57:1340–1343.
5. Marino B, De Leva F, Bevilacqua M, Violini R, Caso P, Ballerini L (1984) Ecocardiografia della coartazione aortica e delle malformazioni associate. In: Atti del XIV Congresso delta Società Italiana di Cardiologia Pediatrica. Ghedini: Milano, Italia, pp 83–89.