M Antigen Typing – Patient Macroamylase Determination Manual Differential Measles (Rubeola) Antibodies, IgG and IgM Meningitis/Encephalitis Panel by PCR Maprotiline Quantitative, Serum or Plasma Measles (Rubeola) Antibody, IgG Meperidine and Metabolite, Serum or Plasma, Quantitative Macroprolactin Marfan Syndrome (FBN1) Deletion/Duplication Measles (Rubeola) Antibody, IgG, CSF Meperidine and Metabolite, Urine, Quantitative Magnesium, Fecal Marfan Syndrome (FBN1) Sequencing and Deletion/Duplication Measles (Rubeola) Antibody, IgM Meperidine, Urine Screen with Reflex to Quantitation Magnesium, Plasma or Serum Marfan Syndrome, FBN1 Sequencing Measles (Rubeola) Antibody, IgM, CSF Mephenytoin and Metabolite Quantitative, Serum or Plasma