C. K. Watt

Methylnaltrexone for opioid-induced constipation in advanced illness.

N. Stambler, Jay R Thomas, G. A. Cooney, 2008, The New England journal of medicine.

Tolevamer, a novel nonantibiotic polymer, compared with vancomycin in the treatment of mild to moderately severe Clostridium difficile-associated diarrhea.

T. Louie, S. Chasan-Taber, G. Garber, 2006, Clinical infectious diseases : an official publication of the Infectious Diseases Society of America.