I 
115TH CONGRESS 
2D SESSION 
H. R. 6637 
To direct the Secretary of Veterans Affairs to study and report on the 
prevalence of cholangiocarcinoma in veterans of the Vietnam era, and 
for other purposes. 
IN THE HOUSE OF REPRESENTATIVES 
JULY 26, 2018 
Mr. ZELDIN (for himself, Mr. KING of New York, Mr. FITZPATRICK, Mr. 
SUOZZI, and Miss RICE of New York) introduced the following bill; which 
was referred to the Committee on Veterans’ Affairs 
A BILL 
To direct the Secretary of Veterans Affairs to study and 
report on the prevalence of cholangiocarcinoma in vet-
erans of the Vietnam era, and for other purposes. 
Be it enacted by the Senate and House of Representa-
tives of the United States of America in Congress assembled, 
SECTION 1. SHORT TITLE. 
This Act may be cited as the ‘‘Vietnam Veterans 
Liver Fluke Cancer Study Act’’. 
SEC. 2. STUDY ON THE PREVALENCE OF CHOLANGIOCARCI-
NOMA IN VETERANS OF THE VIETNAM ERA. 
(a) EPIDEMIOLOGICAL STUDY.—Not later than 120 
days after the date of enactment of this Act, the Secretary 
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of Veterans Affairs, in consultation with the Director of 
the Centers of Disease Control and Prevention of the De-
partment of Health and Human Services, shall commence 
an epidemiological study on the prevalence of cholangio-
carcinoma in veterans of the Vietnam era, using data from 
the Veterans Affairs Central Cancer Registry and the Na-
tional Program of Cancer Registries. The study shall— 
(1) identify the rate of incidence of cholangio-
carcinoma 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 para-
graph (1), identify the percentage of individuals with 
cholangiocarcinoma by various demographic charac-
teristics, 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); and 
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(2) recommendations for administrative or leg-
islative actions required to address issues identified 
in the study under subsection (a). 
(c) 
CONTINUED
TRACKING
OF 
CHOLANGIOCARCINOMA IN VETERANS OF THE VIETNAM 
ERA.—The Secretary shall track the prevalence of cholan-
giocarcinoma in veterans of the Vietnam era using the 
Veterans Affairs Central Cancer Registry, and provide 
such information to Congress as required under subsection 
(d). 
(d) FOLLOW-UP REPORTS.—The Secretary shall pe-
riodically submit to the Congress an updated report under 
subsection (b), as determined by the Secretary. 
(e) DEFINITIONS.—In this section: 
(1) The term ‘‘Secretary’’ means the Secretary 
of Veterans Affairs. 
(2) The term ‘‘Vietnam era’’ has the meaning 
given such term in section 101 of title 38, United 
States Code. 
(3) The term ‘‘veterans of the Vietnam era’’ 
has the meaning given such term in section 4211 of 
title 38, United States Code. 
Æ 
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