Help Wanted re Perjury in Civil Cases

In connection with an article that we are exploring, Jennifer Gundlach and I are interested in hearing from lawyers, clinicians, and judges who might be aware of incidents in which either (a) a lawyer disclosed to a tribunal a client's perjury or intent to commit perjury, or (b) the lawyer did not disclose client perjury and the tribunal was made aware of it.  We want to learn about the extent to which this is occurring, the types of civil cases in which it is occurring, the types of clients about whom lawyers are disclosing information, and the outcome (discipline for the lawyer, as well as the effect on the client).  We would also like to hear about any alternative remedial measures that lawyers have taken short of disclosure.  Of course, if you know of any surveys or studies that have been done in the context of civil cases, we would appreciate hearing about them.  Confidentiality regarding identities will be maintained on request.