@misc{indiciaefa6377987836, title = {Migraine without aura: a population-based twin study.}, author = {M Gervil and V Ulrich and K O Kyvik and J Olesen and M B Russell}, year = {1999}, doi = {10.1002/1531-8249(199910)46:4<606::aid-ana8>3.0.co;2-o}, url = {https://pubmed.ncbi.nlm.nih.gov/10514097/}, note = {Source identifier: 10514097} }