1. Serving the family from birth to the medical home. Newborn screening: a blueprint for the future — a call for a national agenda on state newborn screening programs;Pediatrics,2000
2. American Public Health Laboratories New Steps. http://www.aphl.org/aphlprograms/newborn-screening-and-genetics/Pages/default.aspx.
3. University of Texas Health Science Center at San Antonio Newborn Screen Listserv http://genes-r-us.uthscsa.edu/biographies/therrell.htm.
4. National Vital Statistics Reports 2009–2013 http://www.cdc.gov/nchs/births.htm. Accessed May 11, 2015.
5. Maryland Annual Vital Statistics Reports 2009–2013 http://dhmh.maryland.gov/vsa/sitepages/reports.aspx. Accessed May 11, 2015.