If the movant proposes to take the deposition of the expert witness on written questions, then the movant shall annex to the motion a copy of the questions to be propounded. The movant shall also show that prior notice of the motion has been given to the expert witness whose deposition is sought and to each other party, or counsel for each other party, and shall state the position of each of these persons with respect to the motion, in accordance with Rule
50
(a).