@misc{indiciae69ca8bb2d571, title = {Hypnic headache: an update.}, author = {R De Simone and E Marano and A Ranieri and V Bonavita}, year = {2006}, doi = {10.1007/s10072-006-0590-2}, url = {https://pubmed.ncbi.nlm.nih.gov/16688619/}, note = {Source identifier: 16688619} }