During a recent @-month period , @ patients ( @ men and @ women ; age range , @-@ years ; mean SD age , @ @ years ) with suspected pancreatic disease were randomized into @ groups according to the following iodine-load and tube-voltage protocols : @ mg of iodine per kilogram body weight ( mg/kg ) and @ kV ( p ) ( @-@ group ) , @ mg/kg and @ kV ( p ) ( @-@ group ) , and @ mg/kg and @ kV ( p ) ( @-@ group ) .