anchor.diff:  2624,"Xylometazoline 0.05% Nasal Drop"
   2625,"Xylometazoline 0.1% Nasal Drop"
   2626,"Xylometazoline 0.1% Nasal Spray"
  -2627,"Xylometazoline0.05%/Antazoline0.5% Drop"
  +2627,"Xylometazoline 0.05%/Antazoline 0.5% Drop"
   2628,"Xyloproct Ointment"
   2629,"Yellow Fever Vaccine"
   2630,"Yellow Soft Paraffin"
  
positive.code: 2650,"Zuclopenthixol Acetate Injection"
  2651,"Zuclopenthixol Decanoate Injection"
  2652,"Zuclopenthixol Dihydrochloride Tablet"
  
negative.code: 1695,"Mupirocin Ointment 2%"
  1696,"Muromonab-CD3 Injection [CD]"
  1697,"Mustine Injection"
  1698,"Mycophenolate Mofetil (Cellcept)"
  1699,"Mycophenolate Mofetil Infusion (as hydrochloride)"
  1700,"Mycophenolate Mofetil Oral Suspension"
  1701,"Mycophenolate Mofetil Tablet"
  1702,"N-Acetylcysteine Infusion"
  1703,"N-acetylcysteine infusion."
  1704,"Nabilone Capsule [CD]"
  