Feature

New Ideas and Gadgets

Doctors Are Reading

Front Matter

Freeze Tumors to Death

Sound Waves Diagnose Abnormal Blood Vessels

Measles Vaccine Taken to Indian Dance Festival

Tranquilizer Affects Eyes

[Photograph]: Walk-in Hyperbaric Chamber

More Drugs Included under Drug Abuse Law

Fly Populations Cut by Overcrowding

War on Pollution

Smog Predicted to Be Fatal in Urban Areas