1. I have some questions for my doctor regarding some pain in my lower back.

(The preposition "regarding" is very similar to "about.")

 2. The president of the company held a meeting regarding the progress of the company over the last year.

 3. Vince is talking to someone on the phone regarding a new business opportunity.

4. There is some very interesting and new information regarding baby formula.

 6. There was a story in the newspaper today regarding tax cuts.

 7. The news story regarding the death of Osama bin Laden was very unexpected.