Real-World Effectiveness of Different Nutraceutical Formulations on Pain Intensity of Subjects with Diabetic Peripheral Neuropathy: An Observational, Retrospective, Case-Control Study. - Armeli Grigio L; Boci D; Di Vieste G; Cassanelli G; Epis OM; Viadana A; Bertuzzi F; Pintaudi B (Biomedicines, 2025)