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. Archivio Italiano di Urologia e Andrologia, v. 90, n. 2, p. 97–100, 30 Jun.2018.