E Antigen Typing – Patient E. coli Shiga-like Toxin by EIA Ear Culture and Gram Stain E-Cadherin by Immunohistochemistry Echinococcus Antibody, IgG Echovirus Antibodies EGFR Gene Amplification by FISH EGFR Mutation Detection by Pyrosequencing EGFR T790M Mutation Detection in Circulating Tumor DNA by Digital Droplet PCR Ehlers-Danlos Syndrome Kyphoscoliotic Form, Type VI (PLOD1) Sequencing and Deletion/Duplication Ehlers-Danlos Syndrome Type VI Screen Ehrlichia and Anaplasma Species by Real-Time PCR Ehrlichia chaffeensis Antibodies, IgG & IgM by IFA Ehrlichia chaffeensis Antibody, IgG by IFA Ehrlichia chaffeensis Antibody, IgM by IFA EIF2AK4-Associated Disorders (EIF2AK4) Sequencing Electrolyte and Osmolality Profile, Fecal Enterovirus Typing Epstein-Barr Virus (EBV) by In Situ Hybridization, Stain Only Electrolyte Panel