I'm working on addressing my invitations this weekend and am coming across different opinions regarding Ph.D.'s. I work at a psychology office, so all of my "bosses" who are invited have a Ph.D. and are referred to as "Dr. so-and-so" by their patients. I found some websites that say that a Ph.D. "doctor" is not noted on a wedding invitation as doctor - but obviously don't want to offend 7 of my bosses! Can anyone clarify this a bit for me? Thanks!