anchor.diff:  "6932-8","Penicillin susceptibility","Penicillin","OrdQn",
   "693-2","Culture","Neisseria gonorrhoeae","Ord","Neisseria gonorrhoeae"
   "694-0","Culture","Neisseria gonorrhoeae","Ord","Neisseria gonorrhoeae"
  -"6957-5","IgG Antibody","Western equine encephalitis virus Ab.IgG","Qn","Western equine encephallomyelitis virus"
  +"6957-5","IgG Antibody","Western equine encephalitis virus Ab.IgG","Qn","Western equine encephalomyelitis virus"
   "695-7","Culture","Neisseria gonorrhoeae","Ord","Neisseria gonorrhoeae"
  -"6958-3","IgM Antibody","Western equine encephalitis virus Ab.IgM","Qn","Western equine encephallomyelitis virus"
  +"6958-3","IgM Antibody","Western equine encephalitis virus Ab.IgM","Qn","Western equine encephalomyelitis virus"
   "6959-1","O3 Antibody","Yersinia enterocolitica O3 Antibody","Qn","Yersinia enterocolitica serogroup O:3"
   "6960-9","O5 Antibody","Yersinia enterocolitica O5 Antibody","Qn","Yersinia enterocolitica serogroup O:5"
   "6961-7","O8 Antibody","Yersinia enterocolitica O8 Antibody","Qn","Yersinia enterocolitica serogroup O:8"
  
positive.code: "34450-7","PCR/amplification","Eastern equine encephalitis virus RNA","Ord","Eastern equine encephalitis virus"
  "34487-9","PCR/amplification","Influenza virus A RNA","Ord","Influenza A"
  "35276-5","IgM Antibody","Measles virus Ab.IgM","Ord","Measles virus"
  "35393-8","IgM Antibody","Hantavirus Ab.IgM","Qn","Hantavirus (genus)"
  "35399-5","PCR/amplification","Varicella zoster virus DNA","Ord","VARICELLA ZOSTER VIRUS"
  "35400-1","PCR/amplification","Varicella zoster virus DNA","Ord","VARICELLA ZOSTER VIRUS"
  "35679-0","Total Antibody","Varicella zoster virus Ab.IgG & IgM panel","Qn","VARICELLA ZOSTER VIRUS"
  "35713-7","PCR/amplification","Chlamydia sp DNA","Ord","Chlamydia species"
  "35783-0","Cefuroxine susceptibility","Cefuroxime.oral","OrdQn",
  "35789-7","Daptomycin susceptibility","Daptomycin","OrdQn",
  
negative.code: "10847-2","PCR/amplification","Borrelia burgdorferi DNA","Ord","Borrelia burgdorferi"
  "10850-6","Unknown method","Cyclospora cayetanensis","Ord","Cyclospora cayetanensis"
  "10851-4","Culture","Escherichia coli O157:H7","Ord","Escherichia coli O157:H7"
  "10860-5","Culture","Varicella zoster virus","Ord","Varicella-zoster virus"
  "10896-9","IgG Antibody","Eastern equine encephalitis virus Ab.IgG","Qn","Eastern equine encephalitis virus"
  "10897-7","IgG Antibody","Eastern equine encephalitis virus Ab.IgG","Qn","Eastern equine encephalitis virus"
  "10898-5","IgM Antibody","Eastern equine encephalitis virus Ab.IgM","Qn","Eastern equine encephalitis virus"
  