Re: Impact of Classification of Hilar Cholangiocarcinomas (Klatskin Tumors) on Incidence of Intra- and Extrahepatic Cholangiocarcinoma in the United States

Welzel, Tania M.
McGlynn, Katherine A.
Hsing, Ann W.
O'Brien, Thomas R.
Pfeiffer, Ruth M.

Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD

Correspondence to: Tania M. Welzel, MD, MHS, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 6120 Executive Blvd, EPS Ste 500, Rockville, MD 20892 (e-mail: [email protected]).

Journal of the National Cancer Institute 99(5):p 407-408, March 7, 2007.