Add DOI for preprints.

[adam3smith]

https://forums.zotero.org/discussion/94032/biorxiv-and-medrxiv-not-importing-properply-since-plugin-update#latest

[github-actions]

Awesome! You just created a pull request to the Citation Styles Language styles repository. One of our human volunteers will try to get in touch soon (usually within a week). In the meantime, I will run some automated checks. You should be notified of the results in a few minutes.

If you haven't done so yet, please make sure your style validates and follows all our other Style Requirements.

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[github-actions]

😃 Your submission passed all our automated tests.

Below are some sample citations generated based on your proposed changes:

american-society-for-microbiology.csl (modified style; unchanged output for sample items)

(1, 2)
(3, 4)

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1. 2007. Beyond varieties of capitalism: Conflict, contradiction, and complementarities in the European economy. Oxford University Press, Oxford and New York.
2. 2012. CSL search by example. Citation Style Editor. http://editor.citationstyles.org/searchByExample/. Retrieved 15 December 2012.
3. Mares I. 2001. Firms and the welfare state: When, why, and how does social policy matter to employers?, p. 184–213. In Hall, PA, Soskice, D (eds.), Varieties of capitalism. The institutional foundations of comparative advantage. Oxford University Press, New York.
4. Fenner M, Crosas M, Grethe JS, Kennedy D, Hermjakob H, Rocca-Serra P, Durand G, Berjon R, Karcher S, Martone M, Clark T. 2019. A data citation roadmap for scholarly data repositories. Sci Data 6:28.