Section 28: replaced, on 1 July 1993, by section 13(1) of the Health Amendment Act 1993 (1993 No 24).
Section 28(6): amended, on 25 January 2005, pursuant to section 65R(3) of the Public Finance Act 1989 (1989 No 44).
Section 28(7): amended, on 25 January 2005, pursuant to section 65R(3) of the Public Finance Act 1989 (1989 No 44).