anchor.diff:  "23833-7","Antibody index","Borrelia burgdorferi Ab index","Ord","Borrelia burgdorferi"
   "23867-5","IgG Antibody","Hantavirus sin nombre Ab.IgG","Qn","Hantavirus (sin nombre)"
   "23868-3","IgM Antibody","Hantavirus sin nombre Ab.IgM","Qn","Hantavirus (sin nombre)"
  -"23869-1","DNA probe - not amplified/PCR","Hepatitis B virus DNA","Qn","Hepatitis B"
  -"23870-9","Western (immuno) blot (100+5-1-1 Ab only)","Hepatitis C virus 100+5-1-1 Antibody","Ord","Hepatitis C"
  -"23871-7","Western (immuno) blot (NS5 Ab only)","Hepatitis C virus NS5 Antibody","Ord","Hepatitis C"
  +"23869-1","DNA probe - not amplified/PCR","Hepatitis B virus DNA","Qn","Hepatitis B virus"
  +"23870-9","Western (immuno) blot (100+5-1-1 Ab only)","Hepatitis C virus 100+5-1-1 Antibody","Ord","Hepatitis C virus"
  +"23871-7","Western (immuno) blot (NS5 Ab only)","Hepatitis C virus NS5 Antibody","Ord","Hepatitis C virus"
   "23877-4","IgG Antibody","Anaplasma phagocytophilum Ab.IgG","Qn","Anaplasma phagocytophilum"
   "23878-2","IgM Antibody","Anaplasma phagocytophilum Ab.IgM","Qn","Anaplasma phagocytophilum"
   "23908-7","DNA probe - not amplified/PCR","Neisseria gonorrhoeae rRNA","Ord","Neisseria gonorrhoeae"
  
positive.code: "14790-0","Identification","Helminth identified","Nom",
  "14974-0","PCR/amplification","Mycobacterium sp DNA","Ord","Mycobacterium tuberculosis complex"
  "16099-4","Ethionamide susceptibility","Ethionamide","OrdQn",
  "16128-1","Total Antibody","Hepatitis C virus Ab","Ord","Hepatitis C"
  "16129-9","IgG Antibody","Hepatitis C virus Ab.IgG","Ord","Hepatitis C"
  "16133-1","IgM Antibody","Legionella pneumophila Ab.IgM","Qn","Legionella pneumophila"
  "16134-9","Culture","Neisseria meningitidis","Ord","Neisseria meningitidis"
  "16278-4","PCR/amplification","Mycobacterium tuberculosis DNA","Ord","Mycobacterium tuberculosis complex"
  
negative.code: "6553-2",,"Streptococcus pneumoniae Ag","Ord",
  "6555-7",,"Streptococcus pneumoniae Ag","Ord",
  "6558-1","Typing","Streptococcus pyogenes Ag","Ord","Group A strep (Streptococcus pyogenes)"
  "6559-9","Typing","Streptococcus pyogenes Ag","Ord","Group A strep (Streptococcus pyogenes)"
  "6561-5","IgG Antibody","Treponema pallidum Ab.IgG","Ord","Treponema pallidum"
  "6562-3","IgM Antibody","Treponema pallidum Ab.IgM","Ord","Treponema pallidum"
  "6563-1","IgG Antibody","Trichinella spiralis Ab.IgG","Ord","Trichinella spiralis"
  