Echocardiography in congenital heart disease. Allen HD, Goldberg SJ. Ariz Med. 1974 Aug;31(8):571-5. PMID: 4847053
[Contrast echocardiography: current trends and future prospects]. Bezante GP, Merello MR, Caponnetto S. Cardiologia. 1997 Jun;42(6):585-90. PMID: 9289374
[Echocardiographic studies with a multiscanner apparatus]. Gastaldi L, Cottino AM, Rusconi O, Donegani E, Forni B, Zardini P. G Ital Cardiol. 1976;6(6):1142-7. PMID: 1022616
Automatic computer processing of digital 2-dimensional echocardiograms. Buda AJ, Delp EJ, Meyer CR, Jenkins JM, Smith DN, Bookstein FL, Pitt B. Am J Cardiol. 1983 Aug;52(3):384-9. doi: 10.1016/0002-9149(83)90144-3. PMID: 6869291
A letter from America. Kisslo J. Heart. 1996 Jun;75(6):43-4. doi: 10.1136/hrt.75.6_suppl_2.43. PMID: 8785703 Free PMC Article Free PMC Article
Echocardiography. Roy CP, Durairaj M, Krishnan NR, Subramanian AR, Ghosh MM. J Indian Med Assoc. 1981 Oct 16;77(8):138-41. PMID: 7341685
