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Authors
Hao, Wende
Zhang, Yue
Li, Zhefeng
Zhang, Enjie
Gao, Shen
Yin, Chenghong
Yue, Wentao https://orcid.org/0000-0001-9288-6571
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Funding
Funding for this research was provided by:
Beijing Municipal Science & Technology Commission (Z181100001718193)
National Natural Science Foundation of China (81672838, 61431019)
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Article History
Received: 28 March 2020
Accepted: 12 January 2021
First Online: 22 February 2021
Compliance with ethical standards
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: The authors declare that they have no conflict of interest.
: This manuscript is based on the database of Cancer Incidence in Five Continents, which is published approximately every five years by the International Agency for Research on Cancer (IARC) and the International Association of Cancer Registries (IACR) and provides comparable high-quality statistics on the incidence of cancer from cancer registries around the world, so all procedures performed in our study involving human participants were in accordance with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: This manuscript does not involve an informed consent due to the data in our study from the database of Cancer Incidence in Five Continents.
