Gamma butyrobetaine/Trimethyllysine:SRto:Pt:Ser/Plas:Qn
gamma butyrobetaine/trimethyllysine:srto:pt:ser/plas:qn
Gamma butyrobetaine/Trimethyllysine [Molar ratio] in Serum or Plasma
gamma butyrobetaine/trimethyllysine [molar ratio] in serum or plasma