Fig. 1From: Step-up fecal microbiota transplantation strategy: a pilot study for steroid-dependent ulcerative colitisLaboratory enriched fecal microbiota and infusion of fecal microbiota during endoscopy. a The centrifuged microbiota in lab after microfiltration. b The final product for infusion. c, d The endoscopic image during infusion showing no observable particles in the suspension fluid under magnified endoscopic view, indicating the effect of purification for fecal microbiotaBack to article page