In the March 14, 2017 issue of JAMA, Larry B. Mauksch, MEd explores the difference between respectful communication interruptions and less helpful forms of interruptions.  Mauksch describes a more elaborate form of asking "Anything else?" and introduces examples of respectful interruptions.  Finally, Mauksch introduces the "Triple E" elements of respectful interruption: Excuse, Empathize, and Explain.  

Link to JAMA Article