<qa>  What is the effect of combination of L. reuteri with other lactobacillThere is accumulating interest in role of lactobacilli in decreasing cry and fuss in infant colic, the condition that affects around 1 of 4-5 infants. The interest for dietary supplementation has been evoked by a line of earlier studies, indicating that infants with colic had an increased number of gas-forming E.coli in the intestines and potential interference between lactobacilli and E.coli. Systematic review of evidence, based on the 6 randomized controlled dietary studies, conducted in Italy, Poland, Australia, Canada, and Finland, has concluded of the decrease of the mean time cry of infant by -55 minutes a day after the 3 weeks dietary course with lactobacilli . In the mentioned studies most commonly used lactobacilli were L. reuteri, however, the effect of combination of L. reuteri with other lactobacilli remains unknown. 