L-Methionine associated with Hibiscus sabdariffa and Boswellia serrata extracts are not inferior to antibiotic treatment for symptoms relief in patients affected by recurrent uncomplicated urinary tract infections: Focus on antibiotic-sparing approach. (2018). Archivio Italiano Di Urologia E Andrologia, 90(2), 97-100. https://doi.org/10.4081/aiua.2018.2.97