"Infant "Pregnancy"[Mesh] "Probiotics"[Mesh] 2?-fucosyllactose Bacillus clausii Bifidobacterium Bifidobacterium breve Childhood Asthma Control Test Lacto-N-neotetraose Lactobacillus Lactobacillus reuteri Newborn"[Mesh] acute diarrhea acute gastroenteritis allergy asthma bifidobacteria breast feeding breast milk celiac disease children colic constipation cow's milk protein diversity efficacy fecal microbiota formula feeding functional abdominal pain disorders functional constipation