Transplant by enema: The study doctor will ask you questions about your symptoms and medications. The patient's pants and underwear will be removed. A thin slippery tube will be put into the patient's bottom (rectum). The tube will be pushed in as deep as we can without pushing the tube hard. About 1 cupful of liquid will be gently squeezed into the rectum. The liquid will be made of saline (salt water) and donor stool. We will ask the patient to lie down on their left side for 30 minutes and keep the solution in for at least 45 minutes. The patient will then be sent home.