Provided that— � (a) upon receipt of such a declaration from the President, the National Assembly shall have thirty days within which to determine whether or not the President is in fact or not so incapacitated as to be unable to discharge the duties of the office of President; and (b) if the National Assembly determines that the President remains so incapacitated so as to be unable to discharge the duties of the office of President, by an affirmative vote of two-thirds of all of its members, the First Vice-President shall continue to act as President until the National Assembly determines that the President is again fit to assume the duties and powers of the office of President; or (c) if the National Assembly determines that the President is no longer so incapacitated as to be unable to discharge the duties of the office of President by an affirmative vote of two-thirds of the National Assembly, the President shall resume the duties of the office of President within thirty days of that vote. 13 of 2001(5) If, on the expiry of twelve months from the date of the Speaker being notified of the incapacity of the President, the National Assembly has not determined that the President is fit to perform duties of the office of President in accordance with subsection (4), then the office of President shall be deemed vacant and the Vice-President shall assume office for the remainder of the term in accordance with section 83 (4). (6) The provisions of this section, save for subsection 5 shall apply mutatis mutandis to the incapacity of the First Vice-President except that the certificate shall then be signed by the President and be submitted to the Speaker by the President and the functions of the First Vice-President shall be carried out by such other member of Cabinet as the President may appoint. 6 of 1995(7) Every board of independent medical practitioners required for the purposes of this section shall be selected in accordance with the procedure laid down in the Standing Orders of Parliament. [Ch0000s88]88. Responsibility of the President 31 of 1994(1) The President shall be responsible for the observance of the provisions of this Constitution by the executive and shall, as Head of State, defend and uphold the Constitution as the supreme law of the Republic. (2) The President shall provide executive leadership in the interest of national unity in accordance with this Constitution and the laws of the Republic. 6 of 1995(3) The President and members of the Cabinet shall not hold any other public office and shall not perform remunerative work outside the duties of their office and shall, within three months from the date of election or appointment, as the case may be, fully disclose all of their assets, liabilities and business interests, and those of their spouses, held by them or on their behalf as at that date; and, unless Parliament otherwise prescribes by an Act of Parliament, such disclosure shall be made