Assertion: stoma | /r/HasProperty | antireflux mechanism
Facets:
Source sentences:
text: Ureterostomy was a simple procedure in which the ureters were anastomosed to the abdominal wall; however, these stomas were associated with a high incidence of stenosis and infection (because there was no antireflux mechanism to protect the kidneys from organisms introduced through the stoma), and they were problematic for the patient because they were small skin-level stomas that were difficult to pouch.