Plasma and CSF endorphin levels in primary and symptomatic headaches.
D000328:Adult; D004723:Endorphins / Q000097:blood* / Q000134:cerebrospinal fluid; D005260:Female; D006261:Headache / Q000097:blood* / Q000134:cerebrospinal fluid; D006801:Humans; D008297:Male; D008875:Middle Aged
D004723:Endorphins