J. A. Copel, A. S. Tan, and C. S. Kleinman, “Does a prenatal diagnosis
of congenital heart diseases alter short-term outcome?,” Prenatal
Diagnosis, vol. 10, No. 4, pp. 237–241, Oct. 2002.
 M. S. Cohen, and M. A. Frommelt, “Does fetal diagnosis make a
difference?,” Clinics in Perinatalogy, vol. 32, no. 4, pp. 877–883, Dec.
 L. E. Hunter, and J. M. Simpson, “Sonographic screening for congenital
heart disease,” Nature Reviews Cardiology, vol. 11, pp. 323–334, 2014.
 A.-L. Noponen, and S. Lukkarinnen, A. Angerla, and R. Sepponen,
“Phono-spectrographic analysis of heart murmur in children,” BMC
Pediatrics, vol. 7, 23, 2007.
 F. Kovács, Cs. Horváth, Á. T. Balogh, and G. Hosszú, “Extended Non-
Invasive Fetal Monitoring by Detailed Analysis of Data Measured with
Phonocardiography,” IEEE Trans. Biomed. Eng., vol. 58, no. 1, pp. 64–
 M. Godinez, A. Jiménez, R. Ortiz, and M. Peňa, “On-line fetal heart rate
monitor by phonocardiography,” in Proc. 25th Int. Conf. IEEE EMBS,
Cancun, Mexico, 17-21 Sept 2003, pp. 3141–3144.
 F. Kovács, N. Kersner, K. Kádár, and G. Hosszú, “Computer method for
perinatal screening of cardiac murmur using fetal phonocardiography,”
Computers in Biology and Medicine, pp. 1130–1136, December 2009.
 Y. Song, W. Xie, J. F. Chen, and K. S. Phua, “Passive Acoustic
Maternal Abdominal Fetal Heart Rate Monitoring Using Wavelet
Transform,” Computers in Cardiology, vol. 33, pp. 581–584, 2006.
 A. K. Mittra, A. Shukla, and A. S. Zadgaonkar, “System simulation and
comparative analysis of foetal heart sound de-noising techniques for
advanced phonocardiography,” Int. Journ. Biomed. Eng. and Techn.,
vol.1, no.1, pp. 73–85, 2007.
 F. Kovács, M. Török, Cs Horváth, Á. T. Balogh, T. Zsedrovits, A. Nagy,
and G. Hosszú, “A New, Phonocardiography-Based Telemetric Fetal
Home Monitoring System,” Telemedicine and e-Health, vol. 16, no. 8,
pp. 878–882, October 2010.
 J. Xu, L. G. Durand, and P. Pibarot, “Extraction of the aortic and
pulmonary components of the second heart sound using a nonlinear
transient chirp signal model,” IEEE Trans. Biomed. Eng., vol. 48, pp.