de Sanctis, Vincenzo, et al. “The Juvenile Fibromyalgia Syndrome (JFMS): A Poorly Defined Disorder”. Acta Biomedica Atenei Parmensis, vol. 90, no. 1, Jan. 2019, pp. 134-48, https://doi.org/10.23750/abm.v90i1.8141.