The effect of vitamin a supplementation on disease progression, cytokine levels and gene expression in multiple sclerotic patients: study protocol for a randomized controlled trial.
Harrirchian M H, Mohammadzadeh Honarvar N, Koohdani F, Bitarafan S, Siassi F, Jafarirad S, Abdolahi M, Salehi E, Saharian M A, Rouystaee H, et al.
Acta Med Iran. 2014 Feb; 52(2):94-100. PMID: 24659064.Abstract