Elisa, All the yeast references you'll ever need are in the Lactation Consultant Series #18 written by Kay Hoover, Lisa Amir and Chris Mulford. It is published by LLLI and *very* reasonably priced. Karen Zeretzke, MEd, IBCLC Baton Rouge, Louisiana [log in to unmask] http://www.prairienet.org/laleche/bfcost.html _____________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com Or call Juno at (800) 654-JUNO [654-5866]