%0 Journal Article %T Virulence of Three Distinct Cryptospovidium parvum Isolates for Healthy Adults %A Okhuysen, Pablo C. %A Chappell, Cynthia L. %A Crabb, Joseph H. %A Sterling, Charles R. %A DuPont, Herbert L. %J Journal of Infectious Diseases %V 180 %N 4 %P 1275-1281 %@ 0022-1899 %D 1999-10-01 %I Oxford University Press %~ DeepDyve