| LAB1213 | Eastern Equine Encephalitis Antibody, IgG and IgM, Serum Mayo Clinic Laboratories in Rochester | 
      
        | LAB28650 | Echinococcus Antibody, Serum Missouri Public Health Laboratories | 
      
        | LAB5793 | Ehrlichia/Anaplasma Detection by PCR Barnes-Jewish Hospital Laboratory | 
      
        | EFPO | Electrolyte and Osmolality Panel, Feces Mayo Clinic Laboratories in Rochester | 
      
        | LAB5567 | Electrolyte Panel, Blood Barnes-Jewish Hospital Laboratory | 
      
        | LAB16 | Electrolyte Panel, Plasma Barnes-Jewish Hospital Laboratory | 
      
        | 8028 | Encainide (Enkaid), ODE and MODE Medtox Laboratories, Inc. | 
      
        | LAB9575 | Encephalopathy, Autoimmune/Paraneoplastic Evaluation, Serum Mayo Clinic Laboratories in Rochester | 
      
        | LAB9672 | Encephalopathy, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid Mayo Clinic Laboratories in Rochester | 
      
        | LAB3035 | Endomysial Antibodies (IgA), Serum Barnes-Jewish Hospital Laboratory | 
      
        | LAB6998 | Enterovirus RNA Detection by PCR, CSF Barnes-Jewish Hospital Laboratory | 
      
        | ENTP | Enterovirus, Molecular Detection, PCR, Plasma Mayo Clinic Laboratories in Rochester | 
      
        | LENT | Enterovirus, Molecular Detection, PCR, Varies Mayo Clinic Laboratories in Rochester | 
      
        | LAB863 | Epstein-Barr Viral Antibody Panel, Serum Barnes-Jewish Hospital Laboratory | 
      
        | LAB5796 | Epstein-Barr Virus (EBV) DNA Detection (Quantitative), plasma BJH Molecular Infectious Disease Laboratory | 
      
        | 1694339513 | Epstein-Barr Virus (EBV) PCR, Qualitative Barnes-Jewish Hospital Laboratory | 
      
        | LAB873 | Erythropoietin, Serum Mayo Clinic Laboratories in Rochester | 
      
        | LAB8213 | Estimated Glomerular Filtration Rate (eGFR) Barnes-Jewish Hospital Laboratory | 
      
        | LAB523 | Estradiol (17-β-Estradiol) Barnes-Jewish Hospital Laboratory | 
      
        | LAB6126 | Estriol, Unconjugated, Serum Mayo Clinic Laboratories in Rochester | 
      
        | 9619 | Estrogen, Total, Serum Quest Diagnostics'-St. Louis | 
      
        | 9297 | Estrogens, Estrone (E1) and Estradiol (E2), Fractionated, Serum Mayo Clinic Laboratories in Rochester | 
      
        | LAB982 | Estrone, Serum Mayo Clinic Laboratories in Rochester | 
      
        | LAB46 | Ethanol, Plasma Barnes-Jewish Hospital Laboratory | 
      
        | LAB683 | Ethosuximide, Serum Mayo Clinic Laboratories in Rochester |