Pubmed IDs apparently start at 1:
https://www.ncbi.nlm.nih.gov/pubmed/1
However, we currently only recognise a pubmed id if it is 6 or 7 digits long. We should expand the definition to include any length of digits.
==Getting Started==
citoid is a Node.js application (written in JavaScript) that retrieves information about a webpage, book, journal article, etc. given a URL to the webpage or some other identifier, like DOI (digital_object_identifier). It uses another open source project, Zotero's translation-server, also written in JavaScript, to do a lot of the work.
In order to get citoid working on your computer, you'll need to download both Node version 10.0 (for citoid) and xpcshell version 29.0 (for Zotero) to get both of them working. There are installation instructions and more information available at https://www.mediawiki.org/wiki/Citoid
(For this task, you don't strictly need to install Zotero, but you will find that some of the tests will fail without it installed, so keep this in mind if for writing the tests if you don't install it.)