Cite
A video system for investigating breathing disorders during sleep.
MLA
Griffiths, C. J., et al. “A Video System for Investigating Breathing Disorders during Sleep.” Thorax, vol. 46, no. 2, Feb. 1991, pp. 136–40. EBSCOhost, widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edb&AN=66072245&authtype=sso&custid=ns315887.
APA
Griffiths, C. J., Cooper, B. G., & Gibson, G. J. (1991). A video system for investigating breathing disorders during sleep. Thorax, 46(2), 136–140.
Chicago
Griffiths, C J, B G Cooper, and G J Gibson. 1991. “A Video System for Investigating Breathing Disorders during Sleep.” Thorax 46 (2): 136–40. http://widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edb&AN=66072245&authtype=sso&custid=ns315887.