THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERVICES; MARUGAN, Juan, J.; ZHENG, Wei; SOUTHALL, Noel; HUANG, Wenwei; MCCOY, Joshua, G.; TITUS, Steven; PATNAIK, Samarjit Patent: WO2012/44993 A1, 2012 ;