2
Published 2002
National Cancer Institute

5
by Marcus, Pamela M.
Published 2019
National Cancer Institute (US)

7
Published 1988
World Health Organization, International Agency for Research on Cancer

9
Published 2022
U.S. Department of Health and Human Services, National Institutes of Health, National Cancer Institute

10
Published 2014
International Agency for Research on Cancer

11
by Marcus, Pamela M.
Published 2019
National Cancer Institute (US)