anchor.diff:  "17733-7","IgA Antibody","Trichinella spiralis Ab.IgA","Ord","Trichinella spiralis"
   "17734-5","IgG Antibody","Trichinella spiralis Ab.IgG","Qn","Trichinella spiralis"
   "17735-2","IgM Antibody","Trichinella spiralis Ab.IgM","Ord","Trichinella spiralis"
  -"17766-7","IgM Antibody","Varicella zoster virus Ab.IgM","Qn","VARICELLA ZOSTER VIRUS"
  -"17769-1","Total Antibody","Western equine encephalitis virus Antibody","Qn","Western equine encephallomyelitis virus"
  -"17770-9","Total Antibody","Western equine encephalitis virus Antibody","Qn","Western equine encephallomyelitis virus"
  +"17766-7","IgM Antibody","Varicella zoster virus Ab.IgM","Qn","Varicella-zoster virus"
  +"17769-1","Total Antibody","Western equine encephalitis virus Antibody","Qn","Western equine encephalomyelitis virus"
  +"17770-9","Total Antibody","Western equine encephalitis virus Antibody","Qn","Western equine encephalomyelitis virus"
   "17898-8","Culture","Bacteria identified","Nom",
   "17969-7","Culture","Bacteria identified","Nom",
   "18201-4","IgA Antibody","Borrelia burgdorferi Ab.IgA","Ord","Borrelia burgdorferi"
  
positive.code: "22587-0","Unknown method","Treponema pallidum Antibody","Ord","Treponema pallidum"
  "22592-0","IgG Antibody","Treponema pallidum Ab.IgG","Qn","Treponema pallidum"
  "22594-6","IgM Antibody","T.Pallidum Antibody IgM By ELISA","Qn","Treponema pallidum"
  "22600-1","Total Antibody","Varicella zoster virus Antibody","Ord","VARICELLA ZOSTER VIRUS"
  "22605-0","IgM Antibody","Varicella zoster virus Ab.IgM","Qn","VARICELLA ZOSTER VIRUS"
  "22606-8","IgM Antibody","Varicella zoster virus Ab.IgM","Qn","VARICELLA ZOSTER VIRUS"
  "22956-7","Total Antibody","Burkholderia mallei Antibody","Ord","Burkholderia mallei"
  "22958-3","Total Antibody","Burkholderia mallei Antibody","Ord","Burkholderia mallei"
  "22959-1","Total Antibody","Burkholderia mallei Antibody","Ord","Burkholderia mallei"
  
negative.code: "8041-6","MHA-TP (Microhemagluttination assay)","Treponema pallidum Antibody","Ord","Treponema pallidum"
  "8042-4","Total Antibody","Trichinella spiralis Antibody","Qn","Trichinella spiralis"
  "8043-2","IgG Antibody","Trichinella spiralis Ab.IgG","Ord","Trichinella spiralis"
  "8046-5","Total Antibody","Varicella zoster virus Antibody","Qn","Varicella-zoster virus"
  "8048-1","IgM Antibody","Varicella zoster virus Ab.IgM","Qn","Varicella-zoster virus"
  "8049-9","PCR/amplification","Varicella zoster virus DNA","Ord","Varicella-zoster virus"
  "8052-3","IgG Antibody","Western equine encephalitis virus Ab.IgG","Qn","Western equine encephalomyelitis virus"
  "8053-1","IgM Antibody","Western equine encephalitis virus Ab.IgM","Qn","Western equine encephalomyelitis virus"
  "8054-9","Total Antibody","Yellow fever virus Antibody","Qn","Yellow Fever virus"
  "8055-6","IgG Antibody","Yellow fever virus Ab.IgG","Qn","Yellow Fever virus"
  "8056-4","IgM Antibody","Yellow fever virus Ab.IgM","Qn","Yellow Fever virus"
  "8057-2","PCR/amplification","Yellow fever virus RNA","Ord","Yellow Fever virus"
  "9314-6","Total Antibody","Western equine encephalitis virus Antibody","Qn","Western equine encephalomyelitis virus"
  "9315-3","IgG Antibody","Western equine encephalitis virus Ab.IgG","Qn","Western equine encephalomyelitis virus"
  "9316-1","IgM Antibody","Western equine encephalitis virus Ab.IgM","Qn","Western equine encephalomyelitis virus"
  "9362-5",,"Bordetella pertussis Ab.IgA","Qn",
  "9364-1",,"Bordetella pertussis Ab.IgM","Qn",
  "9526-5","Antigen by EIA/ELISA","Hepatitis D virus Ag","OrdQn","Hepatitis D virus"
  