Oral Probiotic Containing Streptococcus salivarius K12 and Lactobacillus brevis CD2 for Preventing Bacterial Pneumonia in Severe COVID-19: Randomized Clinical Trial - Jonathan R Lauxen; Sidia M Callegari-Jacques; Augusto S Mombelli; Amanda Prando; Tiago T Simon; Fernando Fornari (The Journal of Contemporary Dental Practice, 2025)