Combined Psyllium Husk and Lactulose Supplementation Improves Stool Frequency and Gut Microbiota Diversity in Elderly Patients with Chronic Constipation: A Randomized, Double-Blind, Placebo-Controlled Trial. Journal of Clinical Nutrition and Food Science, [S. l.], v. 6, n. 1, p. 46–52, 2023. DOI: 10.5281/zenodo.22337791. Disponível em: https://somatopub.com/index.php/JCNFS/article/view/459. Acesso em: 31 oct. 2026.