91.   As part of the food studies, Campbell said researchers have studied samples of fish, lobsters and shrimp to see if they are contaminated with heavy metals.

92.   At the University of Missouri-Columbia, researchers are studying a method for quick decontamination after a biological attack.

93.   Japanese researchers studied a man who was born deaf and uses sign language.

94.   Last summer, researchers started studying the best ways to restore the oaks and prairie plants and whether cattle thrive on eating shrubs.

95.   Researchers should study the psychological mechanism behind the placebo effect and try to use it for treatment, he said.

96.   Researchers studied patients with acute hepatitis.

97.   Researchers study neurofeedback as a treatment for brain dysfunction and injury.

98.   Researchers there will study some of the fiercest disease-causing microorganisms known to mankind.

99.   Researchers also studied environmental and demographic variables, finding that involvement in physical education classes and use of community recreation center were key to healthy activity rates.

100.   Researchers now are studying the reaction of elk, caribou and deer in areas where predators have been introduced in recent years.