Letter to the editor: Just a coincidence? Two severe human cases due to swine influenza (SIV) A(H1N1)v in Europe, October 2016
Adlhoch, Cornelia and Penttinen, Pasi, Eurosurveillance, 22, 30478 (2017), https://doi.org/10.2807/1560-7917.ES.2017.22.10.30478