“Effect of Add-on Oral Probiotic Supplement on Quality of Life in Patients with Irritable Bowel Syndrome: A Randomized, Double-Blind, Placebo-Controlled Trial” – PubMed Summary (Not Titlecased) (Note: I provided a brief summary of the study in the title since the original title is a URL and the error code doesn’t provide any context. Also, the summary follows the character limit for a single title.)