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Letter
How to conduct methodologically rigorous epidemiological studies of the Chinese Famine of 1959–1961
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Footnotes
Contributors CLi conceived and supervised the project. CLiu and CLi wrote the manuscript. CLiu, CLi and ZL revised the manuscript and approved the submission.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Provenance and peer review Not commissioned; internally peer reviewed.