<qa>  What is the name of the study that was conducted in liver transplant recipients?8. Rayes N, Seehofer D, Hansen S, Boucsein K, Muller AR, Serke S, et al. Early enteral supply of lactobacillus and fiber versus selective bowel decontamination: a controlled trial in liver transplant recipients. Transplantation. 2002 Jul 15;741:123-7. PubMed PMID: 12134110. 