“Study Protocol - Impact of Lactobacillus rhamnosus GG on Allergic Reactions and Gut Microbiota Composition in Children with Cow’s Milk Allergy: A Single-Center, Randomized, Double-Blinded, Placebo-Controlled, Phase II – MILK ALLERGY Trial”, PPCR, vol. 7, no. 1, May 2021, doi: 10.21801/ppcrj.2021.71.4.