(a)
(1) Notwithstanding any provision of state law, records of the physicians' health committee pertaining to an impaired physician and all records of the dentists' health committee pertaining to an impaired dentist shall be kept confidential and are not subject to discovery or subpoena.
(2) No person in attendance at any meeting of the physicians' health committee or the dentists' health committee shall be required to testify as to any committee discussions or proceedings.
(b) However, information, documents, or records otherwise available from original sources are not to be construed as immune from discovery or use in any such action merely because they were presented during the proceedings of the committee, nor shall any person who testifies before the committee or who is a member of the committee be prevented from testifying as to matters within his or her knowledge, but the witness shall not be asked about his or her testimony before the committee or about opinions formed by him or her as a result of the committee hearings.