Bozdogan B, Galopin S, Leclercq R. Characterization of a new erm-related macrolide resistance gene present in probiotic strains of Bacillus clausii. Appl Environ Microbiol. 2004 Jan;70(1):280-4. http://aem.asm.org/cgi/pmidlookup?view=long&pmid=14711653
Ciffo F. Determination of the spectrum of antibiotic resistance of the "Bacillus subtilis" strains of Enterogermina. Chemioterapia. 1984 Feb;3(1):45-52. https://www.ncbi.nlm.nih.gov/pubmed/6442972
Urdaci C et al. Bacillus clausii probiotic strains: antimicrobial and immunomodulatory activities. J Clin Gastroenterol 2004; 38(Suppl 6):S86-S90 https://www.ncbi.nlm.nih.gov/pubmed/15220667
World Gastroenterology Organisation Global guidelines – Probiotics and prebiotics – October 2011. J Clin Gastroenterol 2012 46; 6: 468-481 https://www.ncbi.nlm.nih.gov/pubmed/22688142