reduction    lexical bundles
 N [reducción]  

N ~ risk ~ | viability ~
  It was used to estimate the absolute risk reduction.

Adj ~ apparent ~, observed ~ | dramatic ~, marked ~, severe ~, significant ~, strong ~, substantial ~| drastic ~, rapid ~ | further ~ | general ~, overall ~ | modest ~, small ~ | partial ~ | relative ~ | similar ~
  This led to a drastic reduction in viability. | There was a modest reduction in frequency.

V ~ cause ~, lead to ~, result in ~ | observe ~ | reflect ~, represent ~ | reveal ~, show ~, suggest ~
  The substitutions resulted in a reduction of activity. | We have shown a reduction in carbohydrate oxidation.

~ V ~ cause
  The reduction caused its disappearance from the range.

~ Prep ~ by | ~ in | ~ of
  We estimated the reduction by inhibition.| This experiment shows the same reduction in antigen. | A significant reduction of statistical power was observed.