Correction to: BMC Pregnancy and Childbirth 20, 406 (2020)

https://doi.org/10.1186/s12884-020-03083-8

Following publication of the original article [1], the authors identified an error in Fig. 2 legend. The legend of Fig. 2a and Fig. 2b was reversed.

Fig. 2
figure 1

Immunohistochemical staining of the myometrium (hysterectomy specimen). a Zinc coproporphyrin-1-positive material (arrow) in a uterine vessel. b Complement component 5a receptor-positive cells (arrowheads) are present in the myometrium

The figure and corrected legend has been included in this correction and the original article has been corrected.