(215 ILCS 165/6) (from Ch. 32, par. 600)
    Sec. 6. A health services plan corporation may, in the discretion of its board of trustees, through its by-laws, limit or define the classes of persons who shall be eligible to become subscribers or beneficiaries, limit and define the benefits which it will furnish, and may divide such benefits as it undertakes to furnish into classes or kinds.
(Source: Laws 1951, p. 569.)