Pubmed expert to extract and download datasets

I am looking for a Pubmed expert to assist with extracting and downloading datasets from Pubmed publications.

Specific datasets needed:
- Gene expression data
- Clinical trial data
- Protein sequence data

Desired format for downloaded datasets:
- XML or json

Number of datasets to extract and download:
- 4-7 datasets

Ideal Skills and Experience:
- Proficiency in navigating and searching the Pubmed database
- Experience in extracting and downloading datasets from Pubmed
- Familiarity with gene expression data, clinical trial data, and protein sequence data
- Ability to handle XML or json format
- Attention to detail and accuracy in dataset extraction and download

Python skills is a plus