An Act amending the act of October 15, 1975 (P.L.390, No.111), known as the Health Care Services Malpractice Act, further providing for definitions, for reduction of awards and for statute of limitations; and providing for joint and several liability, for periodic payment of future damages, for contracts limiting noneconomic damages, for jurisdiction, for change of venue, for causation, for tax status of awards, for binding arbitration, for expert witness qualifications, for expert testimony constituting the practice of medicine, for frivolous litigation and for prejudgment interest.