HETERO RESEARCH FOUNDATION; PARTHASARADHI REDDY, Bandi; MANOHAR SHARMA, Vedula; RATHNAKAR REDDY, Kura; VL SUBRAHMANYAM, Lanka; SUDHAKAR, Neela Patent: WO2012/25857 A1, 2012 ; Location in patent: Page/Page column 57-58 ; WO 2012/025857 A1