Marte Eva Koelemaij, John David Francis Hale and Rohit Jain (2021) “Efficacy Of Oral Probiotic Streptococcus Salivarius K12 In The Prevention Of Halitosis (Bad Breath): A Systematic Review”, International Journal of Pharma and Bio Sciences, 12(4), pp. 27–34. Available at: https://ijpbs.net/index.php/journal/article/view/6948 (Accessed: 23 July 2026).