Paul R. Cohen David Day Jeff De Lisio Michael Greenberg 0001 Rick Kjeldsen Dan Suthers Paul Berman Management of uncertainty in medicine. 103-116 1987 1 Int. J. Approx. Reasoning 1 http://dx.doi.org/10.1016/0888-613X(87)90006-5 db/journals/ijar/ijar1.html#CohenDLGKSB87