| EPO | Erythropoietin, Serum Mayo Clinic Laboratories in Florida | 
      
        | ESOPHAGEAL EPITHILIAL EOSIN... | Esophageal Epithelial Eosinophilic Markers APH Peds Specialty Lab Only | 
      
        | ESR1T | ESR1 Mutation Analysis, Next-Generation Sequencing, Tumor Mayo Clinic Laboratories in Rochester | 
      
        | ESTRADIOL | ESTRADIOL ORMC and South Lake Only | 
      
        | ERPR | Estrogen/Progesterone Receptor, Semi-Quantitative Immunohistochemistry, Manual Mayo Clinic Laboratories in Rochester | 
      
        | ESTF | Estrogens, Estrone (E1) and Estradiol (E2), Fractionated, Serum Mayo Clinic Laboratories in Rochester | 
      
        | E1 | Estrone, Serum Mayo Clinic Laboratories in Rochester | 
      
        | ETX | Ethosuximide, Serum Mayo Clinic Laboratories in Rochester | 
      
        | EVROL | Everolimus, Blood Mayo Clinic Laboratories in Florida | 
      
        | ESBLS | Extended-Spectrum Beta-Lactamase-Producing Gram-Negative Bacteria Surveillance Culture, Feces Mayo Clinic Laboratories in Rochester |