Erratum to: 'The correlation between pretreatment cytokine expression patterns in peripheral blood mononuclear cells with chronic hepatitis c outcome'. Issue 1 (December 2016) - Jabłońska, Joanna; Pawłowski, Tomasz; Laskus, Tomasz; Zalewska, Małgorzata; Inglot, Małgorzata; Osowska, Sylwia; Perlejewski, Karol; Bukowska-Ośko, Iwona; Cortes, Kamila; Pawełczyk, Agnieszka; Ząbek, Piotr; Radkowski, Marek