31.   The family of a teen-ager who died during a gene therapy experiment last year has settled a wrongful death lawsuit against his doctors and the University of Pennsylvania.

32.   The FDA decision does not affect dozens of other gene therapy experiments that use lower doses of adenoviruses or that inject them into some organ other than the liver.

33.   The letter also said the university failed to make a timely report about the death of at least two lab monkeys in similar gene therapy experiments.

34.   The outcry was prompted by the death last September of a Phoenix teen-ager who had volunteered for a different gene experiment.

35.   The teen-ager is the first patient known to have died as a direct result of a gene therapy experiment.

36.   Thus, some critics say gene experiments should temporarily be halted until oversight is better established.