Dec 29, 2013 at 07:04 PM
Here's hoping you get a tapeworm, Yaks.
NY Times citing Chicago Manual of Style says that you use the apostrophe if the acronym includes punctuation: multiple C.D.'s; multiple CDs. http://afterdeadline.blogs.nytimes.com/2010/04/13/faqs-on-style/?_r=0dstokes said:(by the way, my recent research into use of apostrophes indicated that they should only be used to indicate posessive and not to pluralize acronyms).