I'm making presentation slides, which will be on the work of my Ph.D. advisor (Dr. X, full professor), a postdoc. (Dr. Y, the job title is visiting assistant professor) and myself. I'm trying to find a way to most accurately/politely address them.
Should I address them using the same generic title, such as
"Joint work with Professors X and Y"
"Joint work with Dr. X and Dr. Y"
or should I use different titles?