The “D” subject pair

The “D” subject pair after the first-set allograft

The “D” subject pair after the second-set allograft

“D” subject pair after the third-set allograft

The “Q” subject pair

The “Q” subject pair after the first-set allograft

The “Q” subject pair after the second-set allograft

The “Q” subject pair after the third-set allograft