laboratory diagnostic - toxicology - Oxalic acid - serum, serum 3ml, The serum must be frozen within 1 hour after collection and must be sent in the frozen samples container(!), Home sampling is not advisable. Fasting sample (for newborns: collect sample 3 to 4 hours after food intake). Attach the clinical data. Chemistry - Spectrophotometry, ssso, todylaboratories®, bmn, code L16LD2209