anchor.diff:  "9576-0","Total Antibody","Rubella virus Antibody","Qn","Rubella virus"
   "9577-8","Total Antibody","Saint Louis encephalitis virus Antibody","Qn","Saint Louis encephalitis virus"
   "9586-9","Total Antibody","Borrelia burgdorferi Antibody","Nom",
  -"9608-1","Western (immuno) blot (100-3 Ab only)","Hepatitis C virus 100-3 Antibody","Ord","Hepatitis C"
  -"9609-9","Western (immuno) blot (22-3 Ab only)","Hepatitis C virus 22-3 Antibody","Ord","Hepatitis C"
  -"9610-7","Western (immuno) blot (c33c Ab only)","Hepatitis C virus c33c Antibody","Ord","Hepatitis C"
  +"9608-1","Western (immuno) blot (100-3 Ab only)","Hepatitis C virus 100-3 Antibody","Ord","Hepatitis C virus"
  +"9609-9","Western (immuno) blot (22-3 Ab only)","Hepatitis C virus 22-3 Antibody","Ord","Hepatitis C virus"
  +"9610-7","Western (immuno) blot (c33c Ab only)","Hepatitis C virus c33c Antibody","Ord","Hepatitis C virus"
   "9634-7","IgG Antibody","Saint Louis encephalitis virus Ab.IgG","Qn","Saint Louis encephalitis virus"
   "9635-4","IgM Antibody","Saint Louis encephalitis virus Ab.IgM","Qn","Saint Louis encephalitis virus"
   "9636-2","Total Antibody","Varicella zoster virus Antibody","Ord","Varicella-zoster virus"
  
positive.code: "5181-3","IgM Antibody","Hepatitis A virus Ab.IgM","Qn","Hepatitis A virus (human enterovirus 72)"
  "5182-1","IgM Antibody","Hepatitis A virus Ab.IgM","Qn","Hepatitis A virus (human enterovirus 72)"
  "5183-9","Total Antibody","Hepatitis A virus Antibody","Qn","Hepatitis A virus (human enterovirus 72)"
  "5185-4","Core IgM Antibody","Hepatitis B virus core Ab.IgM","Qn","Hepatitis B"
  "5186-2","Core IgM Antibody","Hepatitis B virus core Ab.IgM","Qn","Hepatitis B"
  "5187-0","Core Antibody (HBcAb)","Hepatitis B virus core Antibody","Qn","Hepatitis B"
  "5189-6","e Antibody (HBeAb)","Hepatitis B virus little e Antibody","Qn","Hepatitis B"
  "5191-2","e Antigen (HBeAg)","Hepatitis B virus little e Ag","Qn","Hepatitis B"
  "5193-8","Surface Antibody (HBsAb)","Hepatitis B virus surface Antibody","Qn","Hepatitis B"
  "5194-6","Surface Antibody (HBsAb)","Hepatitis B virus surface Antibody","Qn","Hepatitis B"
  "5195-3","Surface Antibody (HBsAb)","Hepatitis B virus surface Ag","Ord","Hepatitis B"
  "5196-1","Surface Antigen (HBsAg)","Hepatitis B virus surface Ag","Ord","Hepatitis B"
  "5197-9","Surface Antigen (HBsAg)","Hepatitis B virus surface Ag","Ord","Hepatitis B"
  "5198-7","Total Antibody","Hepatitis C virus Antibody","Qn","Hepatitis C"
  "5199-5","Total Antibody","Hepatitis C virus Antibody","Ord","Hepatitis C"
  "5229-0",,"Influenza virus A Antibody","Qn",
  "5230-8",,"Influenza virus B Antibody","Qn",
  "5236-5","Total Antibody","Legionella pneumophila Antibody","Ord","Legionella pneumophila"
  
negative.code: "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 encephalitis virus"
  "17770-9","Total Antibody","Western equine encephalitis virus Antibody","Qn","Western equine encephalitis virus"
  "17898-8","Culture","Bacteria identified","Nom",
  "17969-7","Culture","Bacteria identified","Nom",
  "18201-4","IgA Antibody","Borrelia burgdorferi Ab.IgA","Ord","Borrelia burgdorferi"
  