Missed opportunities for HIV testing in people diagnosed with HIV, Estonia, 2014 to 2015 Rüütel, Kristi and Lemsalu, Liis and Lätt, Sirly and Epštein, Jevgenia and on behalf of OptTEST by HiE, Eurosurveillance, 24, 1800382 (2019), https://doi.org/10.2807/1560-7917.ES.2019.24.15.1800382