Tran CD, Grishko VI, Challa S
Prayaga AK, Loya AC, Gottimukkala SR, Digumarti RR, Maddali LS, Challa S
Naimoli JF, Challa S, Schneidman M, Kostermans K
Challa SR, Majumdar A, Harrison G, Smith K
Annapurna A, Challa SR, Prakash GJ, Viswanath RK
Paul T, Challa S, Tandon A, Panigrahi M, Purohit A
Beeram V, Challa S, Vannemreddy P
Qin H, Hu J, Hua Y, Challa SV, Cross TA, Gao FP
Rao AA, Thota H, Adapala R, Changalasetty SB, Gumpeny RS, Akula A, Thota LS, Challa SR, Rao MR, Das UN