@misc{indiciae41f67cdd6210, title = {Cluster headaches--central or peripheral in origin?}, author = {J Schoenen}, year = {1998}, doi = {10.1016/s0140-6736(05)60256-5}, url = {https://pubmed.ncbi.nlm.nih.gov/9690402/}, note = {Source identifier: 9690402} }