50
Participants
Start Date
November 2, 2019
Primary Completion Date
May 31, 2020
Study Completion Date
May 31, 2020
Multi-strain probiotic mixture of four Bifidobacterium, five Lactobacillus and one Streptococcus species or placebo
Oral supplementation with multi-strain probiotic preparation
Maltodextrin
Maltodextrin as placebo
The Children's Memorial Health Institute, Warsaw
Medical University of Lublin
OTHER
Children's Memorial Health Institute, Poland
OTHER