In 2012 and 2013, bexarotene researchers reported that bexarotene reduced amyloid plaque and improved mental functioning in a small sample of mice engineered to exhibit Alzheimer's-like symptoms and the findings were promoted in the media.
â¢ Significance: â¢ Professor is a job title while Doctor only signifies that the person has passed his Ph.D. â¢ There can be Professors even in the fraternity of the medical world as they are doctors who become eligible to teach to junior doctors.
If someone is a Professor, i.e. that is their actual job title, rather than Lecturer or Reader, then you should never refer to them as Doctor. If you are going to address them formally as Title Surname, then the appropriate title is Professor. If they are not a Professor but have a PhD, then you can say Dr.