TNFRSF1B and rheumatic disorder: To further explore the frequency with which various therapeutic drugs were used for pregnancy complicated by rheumatic diseases, we calculated and analyzed the DDDs of glucocorticoids, immunosuppressive agents, NSAIDs, LMWHs, plant drugs, TNFi (includes recombinant human tumor necrosis factor receptor type II-Fc fusion protein antibody and adalimumab, not other drugs such as etanercept and belimumab), and IVIG.