I have some info on this which as far as I know has not been published other
than in the BF newsletter for the Norwegian BF mothers' organization.  No
time to translate today but I will get to it soon.
It supports the practice mentioned by Pam-- that undrunk milk can be held
for much longer than artificial baby milk without danger of excessive
bacterial growth.
Rachel Myr
Norway

             ***********************************************
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