Hindley, C.; Hinsliff, S. W.; Thomson, A. M. (2006). „English midwives' views and experiences of intrapartum fetal heart rate monitoring in women at low obstetric risk: Conflicts and compromises”. Journal of Midwifery & Women's Health. 51 (5): 354—60. PMID16945783. doi:10.1016/j.jmwh.2006.02.008.
Mc Loughlin, Mario J.; Mc Loughlin, Santiago (октобар 2012). „Cardiac auscultation: Preliminary findings of a pilot study using continuous Wave Doppler and comparison with classic auscultation”. International Journal of Cardiology. 167 (2): 590—591. PMID23117017. doi:10.1016/j.ijcard.2012.09.223.CS1 одржавање: Формат датума (веза)
Hindley, C.; Hinsliff, S. W.; Thomson, A. M. (2006). „English midwives' views and experiences of intrapartum fetal heart rate monitoring in women at low obstetric risk: Conflicts and compromises”. Journal of Midwifery & Women's Health. 51 (5): 354—60. PMID16945783. doi:10.1016/j.jmwh.2006.02.008.
Mc Loughlin, Mario J.; Mc Loughlin, Santiago (октобар 2012). „Cardiac auscultation: Preliminary findings of a pilot study using continuous Wave Doppler and comparison with classic auscultation”. International Journal of Cardiology. 167 (2): 590—591. PMID23117017. doi:10.1016/j.ijcard.2012.09.223.CS1 одржавање: Формат датума (веза)