@misc{indiciae39fba1cfb447, title = {Important advances in headache.}, author = {Hans-Christoph Diener}, year = {2004}, doi = {10.1016/s1474-4422(03)00612-4}, url = {https://pubmed.ncbi.nlm.nih.gov/14693101/}, note = {Source identifier: 14693101} }