3D printed rectal swabs for assessing the gut microbiome, metabolome and inflammation oleh Robert W. Perry, Benjamin H. Mullish, James L. Alexander, Raashi Shah, Nathan P. Danckert, Jesus Miguens Blanco, Lauren Roberts, Zhigang Liu, Despoina Chrysostomou, Shiva T. Radhakrishnan, Sharmili Balarajah, Rachael Barry, Lucy C. Hicks, Horace R. T. Williams, Julian R. Marchesi