R- & S-beta aminoisobutyrate & D- & L-serine panel:-:Pt:Ser/Plas:-
r- & s-beta aminoisobutyrate & d- & l-serine panel:-:pt:ser/plas:-
R- + S-BAIB + D- + L-serine panel SerPl
r- + s-baib + d- + l-serine panel serpl