Rectal swabs as a viable alternative to faecal sampling for the analysis of gut microbiota functionality and composition. - Radhakrishnan, ST; Gallagher, KI; Mullish, BH; Serrano-Contreras, JI; Alexander, JL; Miguens, Blanco J; Danckert, NP; Valdivia-Garcia, M; Hopkins, BJ; Ghai, A; Ayub, A; Li, JV; et al. (Sci Rep, 2023)