| BLWX | Walnut-Food Components, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | BLW | Walnut-Food, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | BLWRF | Walnut-Food, IgE, with Reflex to Walnut-Food Components, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | WARSQ | Warfarin Response Genotype, Varies Mayo Clinic Laboratories in Rochester | 
      
        | WSPV | Wasp Venom, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | WNS | West Nile Virus Antibody, IgG and IgM, Serum Mayo Clinic Laboratories in Rochester | 
      
        | WNC | West Nile Virus Antibody, IgG and IgM, Spinal Fluid Mayo Clinic Laboratories in Rochester | 
      
        | WNVBL | West Nile Virus, RNA, PCR, Molecular Detection, Blood Mayo Clinic Laboratories in Rochester | 
      
        | WNVUR | West Nile Virus, RNA, PCR, Molecular Detection, Random, Urine Mayo Clinic Laboratories in Rochester | 
      
        | WNVS | West Nile Virus, RNA, PCR, Molecular Detection, Serum Mayo Clinic Laboratories in Rochester | 
      
        | WNCSF | West Nile Virus, RNA, PCR, Molecular Detection, Spinal Fluid Mayo Clinic Laboratories in Rochester | 
      
        | WRW | Western Ragweed, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | WHT | Wheat, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | WHEY | Whey, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | BENW | White Bean, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | WBC | White Blood Cell Count FMH Laboratory | 
      
        | WBC Fecal | White Blood Cell, Fecal FMH Laboratory | 
      
        | WFHV | White Faced Hornet Venom, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | POTA | White Potato, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | SC018 | Whole Blood Mayo Clinic Laboratories in Rochester | 
      
        | WEGG | Whole Egg, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | WESMT | Whole Exome and Mitochondrial Genome Sequencing, Varies Mayo Clinic Laboratories in Rochester | 
      
        | WESDX | Whole Exome Sequencing for Hereditary Disorders, Varies Mayo Clinic Laboratories in Rochester | 
      
        | WESR | Whole Exome Sequencing Reanalysis, Varies Mayo Clinic Laboratories in Rochester | 
      
        | WILL | Willow, IgE, Serum Mayo Clinic Laboratories in Rochester |