readme.md

# 1. origin source
https://ftp.ncbi.nlm.nih.gov/pubmed/baseline/

# 2. 2023 data sources
https://github.com/jacobvsdanniel/pubmedkb_web 
*We processed all 35M PubMed citations dumped on 2023/02/17.
https://drive.google.com/file/d/17AUaMe0w3xJq3rr0Njs1tok2y3RS5tQ2/view

# 3. 2025 data sources

https://www.nmdc.cn/datadownload 

[download.py](download.py) ： need monthly update  

[process_meatadata.py](process_meatadata.py) : process xml to csv

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