An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Fengler SA, Nelson RL, Pearl RK, Abcarian H, Orsay CP.Fengler SA, et al. Among authors: pearl rk.Dis Colon Rectum. 1995 Mar;38(3):294-6. doi: 10.1007/BF02055606.Dis Colon Rectum. 1995.PMID: 7882796
Del Pino A, Nelson RL, Pearl RK, Abcarian H.Del Pino A, et al. Among authors: pearl rk.Dis Colon Rectum. 1996 Feb;39(2):224-6. doi: 10.1007/BF02068080.Dis Colon Rectum. 1996.PMID: 8620792