Dear VBA Express

I'd like to try and create a word macro that will highlight words in a document if they come up more than once as a group. So for example if I take this text.

Alcohol (AD) and other substance abuse disorders (SAD) are highly comorbid with mental disorders. A large US study found an odds ratio of 2.7 for people with mental health having SAD. Post-traumatic stress disorder (PTSD) patients were also reported as 5 times as male and 1.7 times as female more likely to have AD or SAD (Regier et al., 1990). Childhood adversity (CA) is similarly linked, with population risks reported as 54% depression, 65% alcoholism, 67% suicide, and 50% drug abuse (Andersen & Teicher, 2009).

Then in the text below it would highlight the words I highlighted

substance abuse disorders are associated with mental disorders

It will just help me go through and condense the work because I have about 100 pages and for example where I say mental disorders about 60 times in the paper I could then after the first time it is used change it to MD instead and recover 30 words in my word count.

Thanks Rob