- Clinical trial: the effects of a probiotic mixture on non-steroidal anti-inflammatory drug enteropathy - a randomized, double-blind, cross-over, placebo-controlled study. Montalto, M., Gallo, A., Curigliano, V., D'Onofrio, F., Santoro, L., Covino, M., Dalvai, S., Gasbarrini, A., Gasbarrini, G. Aliment. Pharmacol. Ther. (2010)