An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Johnson CJ, Beitchman JH, Young A, Escobar M, Atkinson L, Wilson B, Brownlie EB, Douglas L, Taback N, Lam I, Wang M.Johnson CJ, et al. Among authors: brownlie eb.J Speech Lang Hear Res. 1999 Jun;42(3):744-60. doi: 10.1044/jslhr.4203.744.J Speech Lang Hear Res. 1999.PMID: 10391637
Brownlie EB, Beitchman JH, Escobar M, Young A, Atkinson L, Johnson C, Wilson B, Douglas L.Brownlie EB, et al.J Abnorm Child Psychol. 2004 Aug;32(4):453-67. doi: 10.1023/b:jacp.0000030297.91759.74.J Abnorm Child Psychol. 2004.PMID: 15305549