1. Short title This Act may be cited as the Vietnam Veterans Liver Fluke Cancer Study Act . 2. Study on the prevalence of chol­an­gio­car­ci­no­ma in veterans of the Vietnam era (a) Epidemiological study Not later than 120 days after the date of enactment of this Act, the Secretary of Veterans Affairs, in consultation with the Director of the Centers of Disease Control and Prevention of the Department of Health and Human Services, shall commence an epidemiological study on the prevalence of chol­an­gio­car­ci­no­ma in veterans of the Vietnam era, using data from the Veterans Affairs Central Cancer Registry and the National Program of Cancer Registries. The study shall— (1) identify the rate of incidence of chol­an­gio­car­ci­no­ma in veterans of the Vietnam era and in residents of the United States, from the beginning of the Vietnam era to the date of enactment of this Act; and (2) for each of the groups specified in paragraph (1), identify the percentage of individuals with cholangiocarcinoma by various demographic characteristics, including by age, gender, race, ethnicity, and the geographic location of the patient at the time of diagnosis. (b) Report to Congress Not later than one year after the completion of the study under subsection (a), the Secretary shall submit to Congress a report containing— (1) the results of the study under subsection (a)