How would you punctuate this sentence In addition the more severe forms of mood disorders may include psychotic features?

Here are a couple of ways to punctuate the sentence, along with explanations:

Option 1: Comma and a colon

* In addition, the more severe forms of mood disorders may include psychotic features.

* The comma separates the introductory phrase "In addition" from the main clause.

* The colon introduces a list or explanation of what the severe forms of mood disorders might include.

Option 2: Semicolon

* In addition; the more severe forms of mood disorders may include psychotic features.

* The semicolon connects two independent clauses. This option emphasizes the connection between the two ideas.

Choice depends on context

The best choice depends on the overall flow and emphasis you want to convey. The comma and colon option is more common and creates a more formal tone. The semicolon option is more concise and may be better suited for a less formal setting.