Hi Jan, I too read the case study and had no idea, was waiting for the answer. Very interesting. We don't do many circs here in Australia, but it certainly makes the policy of documenting the first void afterwards seem very worthwhile. Is this not the case elsewhere? Kirsten Blacker *********************************************** The LACTNET mailing list is powered by L-Soft's renowned LISTSERV(R) list management software together with L-Soft's LSMTP(TM) mailer for lightning fast mail delivery. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html