“Huangkui Capsule in Combination With Leflunomide Improves Immunoglobulin A Nephropathy by Inhibiting the TGF-β1 Smad3 Signaling Pathway”. Clinics 76 (December 10, 2021): e2904. Accessed June 9, 2024. https://journals.usp.br/clinics/article/view/212960.