| IFN | Interferon |
| IL | Interleukin |
| PBMC | Peripheral blood mononuclear cells |
| PE | Pre-eclampsia |
| PIBF | Progesterone-induced blocking factor |
| PR | Progesterone receptor |
| PTD | Preterm labor |
| RSM | Recurrent spontaneous miscarriage |
| Th | T helper |
| TNF | Tumor necrosis factor |
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