Fei Sun, Junyan Yao, Bingjie Li, Suli Zhang, Huirong Liu. "Retracted: Abstract 4350116: β
                    <sub>1</sub>
                    -adrenergic autoantibodies (β
                    <sub>1</sub>
                    -AA) augment macropinocytosis in CD4
                    <sup>+</sup>
                    T cells, leading to the expansion of CD4
                    <sup>+</sup>
                    CD28
                    <sup>−</sup>
                    T cell subsets in heart failure.." Circulation, 2025. doi:10.1161/circ.152.suppl_3.4350116