OD	oocyte donation
EVTs	extra villous trophoblasts
NK	natural killer
HLA	human leukocyte antigen
IL	interleukin
Th2 NF-κB	T helper 2 nuclear factor kappa-light-chain-enhancer of activated B cells
MMPs	matrix metalloproteases
MIP-1B	macrophage inflammatory protein 1B
EMT	epithelial–mesenchymal transition
GM-CSF	granulocyte macrophage colony-stimulating factor
ILT CD	ig-like transcript cluster of differentiation
TNF-α	tumor necrosis factor alpha
M-CSF	macrophage colony-stimulating factor
TGF-β	transforming growth factor beta
NOS	Newcastle-Ottawa Scale
IVF	in vitro fertilization
NC	naturally conceived
SDF1α	stromal cell-derived factor-1alpha
VUE	villitis of unknown etiology
CK7	cytokeratin 7