hubgit

Search PubMed for articles in the PMC Open Access Subset for which free full text (i.e. XML) is available:
http://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi?db=pubmed&retmode=xml&term=pubmed+pmc+open+access%5Bfilter%5D+AND+free+full+text%5Bfilter%5D

Find the PMCID for an article by PMID:
http://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&db=pmc&retmode=xml&linkname=pubmed_pmc&id=24191168

Fetch full text article XML from PMC by PMCID:
http://eutils.ncbi.nlm.nih.gov/entrez/eutils/efetch.fcgi?db=pmc&id=3804407

A PMC article for which the full text XML is not available:

ahankinson

Usage:
  "kdu_compress ...
   -i <file 1>[*<copies>@<size>],...  {see also `-fprec' & `-icrop'}
       One or more input files. If multiple files are provided, they must be
       separated by commas. Any spaces will be treated as part of the file
       name.  If any filename contains the optional "*<copies>@<size>" suffix,
       that file actually contributes <copies> inputs, where the k'th copy
       starts (k-1)*<size> bytes into the file; this is most useful for raw
       files, allowing a single raw file to contribute multiple image
       components.