The first use of FMT in western medicine was published in 1958 by Ben Eiseman and colleagues, a team of surgeons from Colorado, who treated four critically ill people with fulminant pseudomembranous colitis (before "C. difficile" was the known cause) using fecal enemas, which resulted in a rapid return to health. For over two decades, FMT has been provided as a treatment option at the Centre for Digestive Diseases in Five Dock, by Thomas Borody, the modern-day proponent of FMT. In May 1988 their group treated the first ulcerative colitis patient using FMT, which resulted in complete resolution of all signs and symptoms long term. In 1989 they treated a total of 55 patients with constipation, diarrhea, abdominal pain, ulcerative colitis, and Crohn's disease with FMT. After FMT, 20 patients were considered "cured" and a further 9 patients had a reduction in symptoms. Stool transplants are considered about 90 percent effective in those with severe cases of "Clostridium difficile" colonization, in whom antibiotics have not worked.