When elements that have commas around them also have commas within them, the commas around them change to dashes.
…If it has misspellings — whether they be medications, medical terms, or names — you’ll end up having to change them yourself.
…The men who helped us — Ron, Ross, Ralph, and Manny — volunteered on their own.
…All of the mirrors — right, left, and rearview — were coordinated.
Happy punctuating!
Margie