I refer back to my post. I can understand the white coat as being distinguishable for physicians and we med students. However, I draw the line when docs/med students get offended with other professions being called doctor. I worked hard for a PHD before going to med school. Again, the program entailed more than just being a student taking courses, comp exams, doing well in them in order to write a juried dissertation, conducting research, teaching and having office hours for students. This was just to get the PHD. You better believe that I among others with PHD's, DDS's, DVM's, DPM's, etc deserve the title doctor. Get over yourselves. I have even worked harder in my PHD program than in medical school.
I remember during my first year of medical school, my biochem instructor was a PHD. He is a well known biochemist. We all referred to him as doctor. I guess the medical students should stop doing so, after all he is not an MD.