Krista, My Surgeons follow severe (60-79% asymptomatic) usually every 6 mos. with instructions to notify us in the presence of symptoms in the interim. On occasion, if we feel they are closer to the 79% end of the spectrum as opposed to the 60%, then they may have them come back sooner, say in 4 mos. Doug Marcum RT(R), RDMS, RVT TDVL Maitland (Orlando), Fl. ___________________________________________________________________ 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/getjuno.html or call Juno at (800) 654-JUNO [654-5866]