Methotrexate^1-2w post dose:MCnc:Pt:Ser/Plas:Qn
methotrexate^1-2w post dose:mcnc:pt:ser/plas:qn
Methotrexate [Mass/volume] in Serum or Plasma --1-2 weeks post dose
methotrexate [mass/volume] in serum or plasma --1-2 weeks post dose