I can't download .pdf
files from http://www.ncbi.nlm.nih.gov/pmc/articles, I already have some document IDs such as PMC3404089.
I tried to issue the following command:
curl -o file.pdf http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3404089
The command downloaded a file, file.pdf
, but it is an empty file.