(1) Nothing in this chapter shall be construed as repealing any special act previously passed providing for a board of commissioners to administer or operate municipal hospitals, and this chapter shall apply solely to cities of the first class owning or operating hospitals, including hospitals in the process of construction.
(2) The provisions of this chapter shall be cumulative and shall not be deemed to repeal or supersede any other plan of operation of any municipal hospital as authorized by law since it is the intention of this chapter to provide an additional method of operation of any municipal hospital subject to the terms of this chapter.