Lynn Robertson, MS, RN, is Clinical Nurse III, York Hospital, Department of Gastroenterology, York, Pennsylvania.
Correspondence to: Lynn Robertson, MS, RN, York Hospital, Department of Gastroenterology, 1001 S. George St, York, PA 17356 (e-mail: [email protected]).
The author has disclosed that she has no financial relationships related to this article.
Received July 10, 2008; accepted November 6, 2008.