Multiple occurrence of same abbreviation

**Describe the bug**
Scispacy abbreviation detector processor output multiple occurrence of same abbreviation

![](https://user-images.githubusercontent.com/16308156/214558075-b78076d2-9a4f-4095-a10f-2ece19672d97.png)


**To Reproduce**
Run medical_text_understanding example

**Expected behavior**
One abbreviation should not repeat in same sentence

