Crawl and selectively download PubMed open-access PDFs: https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/
nickgogan/1tool-pubmedOpenAccessPDFFTPDownloader
Crawl and selectively download PubMed open-access PDFs: https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/
C#GPL-3.0