@misc{indiciae5ef8381c36f7, title = {Uncommon primary headaches.}, author = {Giorgio Sandrini and Cristina Tassorelli and Natascia Ghiotto and Giuseppe Nappi}, year = {2006}, doi = {10.1097/01.wco.0000227042.00824.e0}, url = {https://pubmed.ncbi.nlm.nih.gov/16702839/}, note = {Source identifier: 16702839} }