This site uses Google Analytics to track site traffic and other metrics. If you would like to allow the use of Google Analytics please click Opt In below. This will associate a cookie with your browser.
Opioid system hypofunction has been postulated in cluster headache (CH) on the basis of reduced opioid levels found in the cerebrospinal fluid (CSF). In this study beta-endorphin levels were monitored in the peripheral blood mononuclear cells of 65…
