参考文献

ENDO PHARMACEUTICALS INC.; SMITH, Roger, Astbury; KETHIRI, Raghava, Reddy; KRISTAM, Rajendra; LAPING, Nicholas, James; VENKATESHAPPA, Chandregowda; KULKARNI, Bheemashankar; DEVRAJ, Rajesh; DEWANG, Purushottam Patent: WO2013/49559 A1, 2013 ;