1. Electronic medicines compendium: summary of product characteristics for desogestrel (Cerazette®) https://www.medicines.org.uk/emc/medicine/10098
2. VigiBase, the WHO global ICSR database system: basic facts;Lindquist;Drug Inf J,2008
3. Caveat document; accompanying statement to data released from VigiBase, the WHO international database of suspected adverse drug reactions https://www.who-umc.org/media/1417/umc_caveat_201605.pdf
4. Shrinkage observed-to-expected ratios for robust and transparent large-scale pattern discovery;Norén;Drug Saf,2013