Beneficial effect of consuming milk containing only A2 beta-casein on gut microbiota: A single-center, randomized, double-blind, cross-over study - Chin-Hee Song; Nayoung Kim; Yonghoon Choi; Seulgi Kim; Kyung Su Kim; Min Hee Park; Sang Hee Lee; Dong Ho Lee (PLoS ONE, 2025)