Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy.

Multiple Sclerosis Center, Binaghi Hospital, ASL Cagliari, Department of Medical Sciences and Public Health, University of Cagliari, Italy.

Division of Gynecology and Obstetrics, Department of Surgical Sciences, University of Cagliari, Cagliari, Italy.

Multiple Sclerosis Center, Binaghi Hospital, ASL Cagliari, Department of Medical Sciences and Public Health, University of Cagliari, Italy.

Clinical Metabolomics Unit, Department of Biomedical Sciences, University of Cagliari, Italy.

Multiple Sclerosis Center, Binaghi Hospital, ASL Cagliari, Department of Medical Sciences and Public Health, University of Cagliari, Italy.

Department of Neurosciences, ARNAS Brotzu, Cagliari, Italy.

Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy.

Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy.

Clinical Metabolomics Unit, Department of Biomedical Sciences, University of Cagliari, Italy.

Division of Gynecology and Obstetrics, Department of Surgical Sciences, University of Cagliari, Cagliari, Italy.

Multiple Sclerosis Center, Binaghi Hospital, ASL Cagliari, Department of Medical Sciences and Public Health, University of Cagliari, Italy.

Multiple Sclerosis Center, Binaghi Hospital, ASL Cagliari, Department of Medical Sciences and Public Health, University of Cagliari, Italy. Electronic address: lorena.lorefice@hotmail.it.