Requiring the medical board for the State Retirement and Pension System to investigate the applications of the surviving spouses of a retiree of the several systems who at the time of retirement selected the basic State retirement allowance; authorizing the surviving spouse to submit an application to the Board of Trustees of the State Retirement and Pension System for review by the medical board of the mental capacity of the retiree at the time the retiree completed the retiree's application for retirement; etc.