Double plasma molecular adsorption system and sequential half-dose plasma exchange improves short-term prognosis of patients with hepatitis B associated acute-on-chronic liver failure Journal title: Chinese Journal of Blood Transfusion Authors: Chenggao WU, Wei LIU, Linju KUANG, Qiang LIU, Wei XIONG, Piaoping HU, Changlin ZHANG, Aiping LE Subject(s): Hematology