Except as otherwise provided, findings, conclusions, or summaries resulting from medical studies within the scope of this part shall not be used or made available in any legal proceeding. Any information provided to any researcher or study committee shall not be used or made available in any legal proceeding unless it is unobtainable from the original source. In such event, the judicial officer shall in chambers inspect the findings, conclusions, or summaries and make available factual information contained therein.