Dr. Paul will return to his prior position as deputy director for science and technology.
Bruce Margon Baltimore The author is the associate director for science at the Space Telescope Science Institute.
Amy Adams, director for science communications at the Stanford News Service, contributed to this article.
In an interview, Dr. David Fleming, the disease control centers' deputy director for science, defended the new version.
Stuhlinger worked at the Marshall Space Flight Center in Huntsville as director of the Space Sciences Laboratory (1960 68) and associate director for science (1968 75).
Sylwia Trzaska, associate research scientist, and Alex de Sherbinin, associate director for Science Applications, are co-authors.
"These new observations were very difficult, but were elegantly done," said Dr. Bruce Margon, associate director for science at the Space Telescope Science Institute in Baltimore.
The next step is to expand overseas, said Dr. James L. Pirkle, the deputy director for science at the Atlanta laboratory.
"This is still a phenomenon that we don't fully understand," said Terry Pechacek, associate director for science for the agency's Office for Smoking and Health.
Investigators sifted for clues to any link to 132 chemicals, said Dr. James L. Pirkle, the deputy director for science at the federal laboratories that conducts the studies.
"We don't see any concerns at this stage," said George H. Pauli, associate director for science policy in the F.D.A.'s Office of Food Additive Safety.
