| SMAD4 | SMAD4 Immunostain, Technical Component Only Mayo Clinic Laboratories in Rochester | 
      
        | SDLDL | Small Dense Low Density Lipoprotein Cholesterol, Serum Mayo Clinic Laboratories in Rochester | 
      
        | SLL | Small Lymphocytic Lymphoma, FISH, Tissue Mayo Clinic Laboratories in Rochester | 
      
        | SMAB | Smith (Sm) Antibodies, IgG, Serum Mayo Clinic Laboratories in Rochester | 
      
        | SM | Smith (Sm) Antibodies, IgG, Serum MCHS- La Crosse Lab | 
      
        | SLO | Smith-Lemli-Opitz Screen, Plasma Mayo Clinic Laboratories in Rochester | 
      
        | SMAT | Smooth Muscle Antibody Titer, Serum Mayo Clinic Laboratories in Rochester | 
      
        | SMOTH | Smoothelin Immunostain, Technical Component Only Mayo Clinic Laboratories in Rochester | 
      
        | SNAIL | Snail, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | SOD1Z | SOD1 Gene, Full Gene Analysis, Varies Mayo Clinic Laboratories in Rochester | 
      
        | NAU | Sodium, 24 Hour, Urine MCHS- La Crosse Lab | 
      
        | NAPS | Sodium, Plasma MCHS- La Crosse Lab | 
      
        | RNAUR | Sodium, Random, Urine MCHS- La Crosse Lab | 
      
        | NAS | Sodium, Serum Mayo Clinic Laboratories in Rochester | 
      
        | SOLEF | Sole, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | SOLFM | Soluble Fibrin Monomer, Plasma Mayo Clinic Laboratories in Rochester | 
      
        | STFR | Soluble Transferrin Receptor (sTfR), Serum Mayo Clinic Laboratories in Rochester | 
      
        | SLC1Q | Solute Carrier Organic Anion Transporter Family Member 1B1 (SLCO1B1) Genotype, Statin, Varies Mayo Clinic Laboratories in Rochester | 
      
        | SOMAT | Somatostatin Immunostain, Technical Component Only Mayo Clinic Laboratories in Rochester | 
      
        | SSTR2 | Somatostatin Receptor 2 (SSTR2), Immunostain, Technical Component Only Mayo Clinic Laboratories in Rochester | 
      
        | SORBU | Sorbitol and Mannitol, Quantitative, Random, Urine Mayo Clinic Laboratories in Rochester | 
      
        | SOX10 | SOX10 Immunostain, Technical Component Only Mayo Clinic Laboratories in Rochester | 
      
        | SOX11 | SOX11 Immunostain, Technical Component Only Mayo Clinic Laboratories in Rochester | 
      
        | SOY | Soybean, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | PBC2 | SP100 and GP210 Antibodies, IgG, Serum Mayo Clinic Laboratories in Rochester |