61.   A popular technique to help infertile men become fathers, injecting individual sperm into individual eggs, alters the fertilization process, researchers have found.

62.   A single gene, researchers have found, seems to be behind the disease.

63.   A team of Massachusetts General Hospital researchers has found that advertising may influence the choice of hypertension drugs that doctors prescribe for their patients.

64.   AAUW researchers found a complex array of considerations playing into the educational prospects for Hispanic women.

65.   Adult rats separated from their mothers for a few hours each day soon after birth show exaggerated cortisol secretion in response to stress, researchers have found.

66.   After studying the cases of bicyclists killed in Maryland, the researchers found that a third of the riders had had elevated blood-alcohol levels.

67.   After interviewing the stutterers and their twins, the researchers found that both identical twins were more than three times as likely as fraternal twins to be stutterers.

68.   After the irradiated cells were allowed to divide a dozen times, the researchers found that a quarter of them contained patterns of broken or distorted chromosomes.

69.   After three weeks, researchers found no behavior changes in either group.

70.   Also, some researchers have found, families already under great stress are less able to cope with the complicated daily regimen that asthma demands.