No member of a peer review committee or a professional standards review committee of a state or local professional organization, including, but not limited to, committees established to review the practices of doctors of chiropractic, doctors of veterinary medicine, doctors of medicine, doctors of dentistry, attorneys at law, real estate brokers, architects, professional engineers, certified public accountants, public accountants or registered nurses shall be deemed liable to any person for any action taken or recommendation made within the scope of the functions of the committee, if the committee member acts without malice and in the reasonable belief that such action or recommendation is warranted by the facts known to him after reasonable effort to obtain the facts of the matter as to which such action is taken or recommendation is made.