Correction to: Accumulation of blood-circulating PD-L1-expressing M-MDSCs and monocytes/macrophages in pretreatment ovarian cancer patients is associated with soluble PD-L1

Correction to: J Transl Med (2020) 18:220 10.1186/s12967-020-02389-7

Following the publication of the original article [1], it was noted that due to a typesetting error, the Fig. 1 was replaced by a duplicate of Fig. 3. The correct Fig. 1 is given below, and the original article has been corrected.

Fig. 1.

Evaluation of HLA-DR^−/lowCD14⁺ monocytic myeloid-derived suppressor cells (M-MDSCs) and HLA-DR⁺CD14⁺ monocytes/macrophages (MO/MA). Simultaneous analysis of myeloid cell populations in the a, b blood, c ascites and d tumour tissue of patients with ovarian cancer. Mononuclear cells (MCs) obtained from the blood (n = 43), ascites (n = 26), and tumour tissue (n = 29) of ovarian cancer patients and from the blood of healthy women (n = 15) were analyzed using flow cytometry. The levels of M-MDSCs and MO/MA are presented as the percentage of MCs. The horizontal lines are the median values and the whiskers indicate the minimum and maximum values. Each point corresponds to an individual patient. *p < 0.05; ***p < 0.001; ****p < 0.0001