-;; Lisp code to setup bibliography cite, ref and label org-mode links.
-;; also sets up reftex for org-mode. The links are clickable and do
-;; things that are useful. You should really read org-ref.org for details.
+;; Lisp code to interact with pubmed databases, links to pubmed
+;; identifiers. See pubmed.org.
+;;;
+;; This library provides links that go to pubmed resources, e.g.
+;;
+;; pmcid:PMC3498956
+;;
+;; pmid:23162369
+;;
+;; and nihmsid:NIHMS395714
+;;
+;; See http://www.ncbi.nlm.nih.gov/pmc/about/public-access-info/#p3 for details of these identifiers.