Notwithstanding any other provision of law, the governing board of any nonprofit public hospital in this State with the approval of the governing body of the county wherein such hospital is located which has borrowed money may continue to borrow money in the name of the hospital for general hospital purposes. "Borrowing money" as used herein shall include the authority to make notes or other evidences of debt and to secure payment thereof by placing a mortgage on any or all of its property, both real and personal.