Foetal microchimerism occurs in pigs. Issue 11 (8th September 2022) - Wang, Zhengzhu; Ren, Jilong; Han, Zhiqiang; Wang, Jing; Gu, Shigang; Zhou, Yongfeng; Han, Zhen; Zhai, Yanhui; Zhang, Sheng; An, Xinglan; Yu, Dawei; Hu, Zheng; et al.