Nature - USA (2020-01-02)

3

nature research | reporting summary

April 2018

to the findings. We are committed to making all data, models, code, etc. used in our research available to those interested individuals

so that they can be used by others to exactly reproduce our findings.

Randomization No allocation. We study China and China's provinces.

Blinding No blinding. We study China and China's provinces.

Did the study involve field work? Yes No

Reporting for specific materials, systems and methods

Materials & experimental systems

n/a Involved in the study

Unique biological materials

Antibodies

Eukaryotic cell lines

Palaeontology

Animals and other organisms

Human research participants

Methods

n/a Involved in the study

ChIP-seq

Flow cytometry

MRI-based neuroimaging