Dysarthria. Impairment of speech; Slurred speech; Speech disorders - dysarthria. U.S. National Library of Medicine - PubMed Health. 2012 [8 December 2013]. (原始内容存档于2014-02-22).
Specific Language Impairment. National Institute on Deafness and Other Communication Disorders (NIDCD). (原始内容存档于2016-02-01).
web.archive.org
Specific Language Impairment. National Institute on Deafness and Other Communication Disorders (NIDCD). (原始内容存档于2016-02-01).
Dysarthria. Impairment of speech; Slurred speech; Speech disorders - dysarthria. U.S. National Library of Medicine - PubMed Health. 2012 [8 December 2013]. (原始内容存档于2014-02-22).