Herbal Remedies for Constipation-Predominant Irritable Bowel Syndrome: A Systematic Review of Randomized Controlled Trials - Chiarioni, Giuseppe; Popa, Stefan Lucian; Ismaiel, Abdulrahman; Pop, Cristina; Dumitrascu, Dinu Iuliu; Brata, Vlad Dumitru; Duse, Traian Adrian; Incze, Victor; Surdea-Blaga, Teodora (Nutrients, 2023)