rr, rrr, rrrr, rre, rrb, rrna, rro, rrd, rra, rrp, rrx, rrt
RR. There are any references about RR in here. you can look below.
RR
rr
rr
rrr
rrr
rrrr
rrrr
rre
rre
rrb
rrb
rrna
rrna
rro
rro
rrd
rrd
rra
rra
rrp
rrp
rrx
rrx
rrt
rrt
rr, rrr, rrrr, rre, rrb, rrna, rro, rrd, rra, rrp, rrx, rrt