Analysis of information sources in references of the Wikipedia article "睡眠障碍" in Chinese language version.
|chapterurl=
缺少标题 (帮助). Chapter 10, Neuropsychiatric Aspects of Sleep and Sleep Disorders (pp 315-340) 4. Arlington, Virginia, USA: American Psychiatric Publishing. 2004. ISBN 978-1-58562-005-0. ...insomnia is a symptom. It is neither a disease nor a specific condition. (from p. 322)