Here's are some pretty good articles about it: http://www.veterinarypartner.com/Content.plx?P=A&S=0&C=0&A=1390
http://www.marvistavet.com/html/body_imha.html *the two articles above are very similar in information* http://www.merckvetmanual.com/mvm/index.jsp?cfile=htm/bc/60205.htm -- Belinda happiness is being owned by cats ... Be-Mi-Kitties http://bemikitties.com Post Adoptable FeLV/FIV/FIP Cats/Kittens http://adopt.bemikitties.com FeLV Candlelight Service http://bemikitties.com/cls HostDesign4U.com [affordable hosting & web design] http://HostDesign4U.com ------------ BMK Designs [non-profit animals websites] http://bmk.bemikitties.com