Randomised clinical trial: faecal microbiota transplantation by colonoscopy plus vancomycin for the treatment of severe refractory Clostridium difficile infection—single versus multiple infusions. - Ianiro, G.; Masucci, L.; Quaranta, G.; Simonelli, C.; Lopetuso, L. R.; Sanguinetti, M.; Gasbarrini, A.; Cammarota, G. (Alimentary Pharmacology & Therapeutics, 2018)