Retrospective Evaluation of L-Acetyl Carnitine and Palmitoylethanolamide as Add-On Therapy in Patients with Fibromyalgia and Small Fiber Neuropathy. - Bentivenga, Crescenzio; Cicero, Arrigo Francesco Giuseppe; Fogacci, Federica; Politi, Natalia Evangelia; Di Micoli, Antonio; Cosentino, Eugenio Roberto; Gionchetti, Paolo; Borghi, Claudio (Pharmaceutics, 2025)