31.   After incubating for about two weeks, the patient develops a high fever, fatigue and body aches.

32.   But many surgeons are uncomfortable operating without a machine on stand-by, in case the patient develops a potentially fatal problem.

33.   But patients developed serious side effects after several months.

34.   But the patients also develop severe hemorrhaging, which fills their lungs with blood.

35.   But some patients developed heart problems, including rare cases of congestive heart failure, studies show.

36.   Crystal said the just-completed study found no signs that the four patients were developing an immunity.

37.   Doctors cannot always tell why a patient develops atrial fibrillation.

38.   Different patients develop different problems.

39.   Early hopes fell through when test patients developed severe side effects.

40.   Early results of a small study of the hepatitis B drug showed that certain patients developed immune system related negative side effects, Protein Design said.