Amenta M, Cascio M, Di Fiore, et al. P. Diet and chronic constipation. Benefits of oral supplementation with symbiotic zir fos (Bifidobacterium longum W11 + FOS Actilight). Acta Biomed [Internet]. 2006 Dec. 1 [cited 2025 Feb. 24];77(3):157-62. Available from: https://mattioli1885journals.com/index.php/actabiomedica/article/view/2001