A simple chrome extension to navigate to scihub by doi in the paper webpage.
step1: download by git clone https://github.com/orangeSi/doi2scihub.git
step2: open chrome://extensions/ with chrome broswer and
turn on the developer mode in the right-up corner
step3: chick the button "load unpacked extension" in the left-up corner and
select the directory of downloaded dos2scihub
step4: done
After install, then open https://pubmed.ncbi.nlm.nih.gov/31021201/ for test with chrome,
then click the green background button for navigate to scihub!