Fortnum, H. M., Summerfield, A. Q., Marshall, D. H., Davis, A. C., & Bamford, J. M. (2001). Prevalence of permanent childhood hearing impairment in the United Kingdom and implications for universal neonatal hearing screening: Questionnaire based ascertainment study. BMJ Group.
Styl ChicagoFortnum, Heather M., A Quentin Summerfield, David H. Marshall, Adrian C. Davis, a John M. Bamford. Prevalence of Permanent Childhood Hearing Impairment in the United Kingdom and Implications for Universal Neonatal Hearing Screening: Questionnaire Based Ascertainment Study. BMJ Group, 2001.
Citace podle MLAFortnum, Heather M., et al. Prevalence of Permanent Childhood Hearing Impairment in the United Kingdom and Implications for Universal Neonatal Hearing Screening: Questionnaire Based Ascertainment Study. BMJ Group, 2001.