41.   The lead author was geophysicist Roland Burgmann of the University of California at Berkeley.

42.   The lead author of the paper was Dr. Paul Epstein, associate director of the Center for Health and the Global Environment at Harvard Medical School.

43.   The lead author of the report is Dr. Jeffrey E. McClintock of the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass.

44.   The lead author of the study was Dr. Eric C. Schneider of the Harvard School of Public Health.

45.   The lead author, Carol A. Binzen, and her colleagues said that for maximum benefit, a combination of both aerobic exercise and work with weights was needed.

46.   The lead author, Dr. Geraldine M. McQuillan of the Centers for Disease Control and Prevention, and her colleagues said doctors needed to be more aggressive about immunizing.

47.   The lead author, Dr. Patrick J. Lustman of Washington University, said the issue was complex.

48.   The lead author is Dale Woodbury from the New Jersey medical school.

49.   The lead author is Huang Wanpo of The Institute of Vertebrate Paleontology at the Academia Sinica in Beijing.

50.   The lead author, Dr. Jeanette Brown, said in a statement that women contemplating hysterectomies need to weigh the difficulties of incontinence with their current levels of discomfort.