@misc{indiciae636fb79c86e1, title = {Headache classification and factor analysis with a pediatric population.}, author = {J A Mindell and F Andrasik}, year = {1987}, doi = {10.1111/j.1526-4610.1987.hed2702096.x}, url = {https://pubmed.ncbi.nlm.nih.gov/3570767/}, note = {Source identifier: 3570767} }