84.13. The approval of part of the organization plan of an institution by a regional council or the Minister’s approval of a regional medical and dental staffing plan shall not have effect in respect of the status and privileges granted to a physician or dentist by the board of directors of the institution before 1 April 1987 or in respect of the status and privileges granted to a physician or dentist whose appointment received the prior approval of a regional council in accordance with the second paragraph of section 9 of the Act to amend the Act respecting health services and social services (1986, chapter 57).