O

17-OHS
MSZ
O-2A
O-BCS
O-C 2
O-E
O-FFQ
O-GlcNAcylation
O/I
O-Mad2
O/N
O-POEM
o-rMETase
O-SCORE
O-TLIF
O2Hb
O3FA
OA16 definitions
OAA4 definitions
OAB2 definitions