anchor.diff:  
   HVA: homovanillic acid
   
  +
  +HVLT-dr: Hopkins Verbal Learning Test delayed recall (belongs to WL-dr category)
  +
   === I
   
   ICAIMT: internal cartotid artery internal and common carotid intimal medial thickness
  
positive.code: 
  === M
  
  MA: male athletes
  
  
  
negative.code: DHEA-S: dehydroisoandrosterone sulfate
  
  
  DI: Disposition index
  
  
  DM: diabetes mellitus
  
  
  D.p.: Dermatophagoides pteronyssinus
  
  
  DWRT-dr: Delayed Word Recall Test (belongs to WL-dr category)
  
  
  DXA: dual energy X-ray absorptiometry
  
  === E
  