Predictive factors of irritable bowel syndrome improvement: 1-year prospective evaluation in 400 patients.
Mearin F, Badía X, Balboa A, Benavent J, Caballero AM, Domínguez-Muñoz E, Garrigues V, Piqué JM, Roset M, Cucala M, et al. Aliment Pharmacol Ther. 2006 Mar 15; 23(6):815-26.