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This slution does not adequately address concepts containing the term "juvenile" as that term is used to represent the clinical manifestation of a disorder at a very broad range of life periods.  There is an inactive concept  282035009 -    Juvenile (qualifier value), which I suspect was inactivated due to the variability in determining which more specific life periods it encompasses.

Many of the affected concepts are not modeled according to the pattern shown in the solution section below. These will be editied to conform to the proposed pattern.

4. Solution 

A new qualifier value of "Post-natal" will be created to aggregate the periods of life that would be used to define "Acquired" conditions.

All concepts that current explicitly state "acquired" in their FSN would have a new relationship OCCURRENCE = Post-natal period (qualifier value) added to the defining relationship group(s).  This will allow many of the currently primitive concepts to become sufficiently defined resutling in a richer set of inferences.

The general pattern for revising the affected concepts is shown in the diagram below

 

5. Construction 

6. Transition phase 

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