Person injured in motor vehicle accident sued limousine service and railroad to recover damages. Injured person's treating physician agreed to be deposed by defendants but withdrew his consent after deposition began, and defendants moved for order compelling physician to appear for continuation of deposition. The District Court, Lefkow, United States Magistrate Judge, held that since no subpoena had been issued to physician, his appearance could not be compelled. Motion denied. Thomas M. Flaskamp