Word: calcium
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Dates: during 1990-1999
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Scientists monitored the amount of calcium absorbed by the students. The calcium was tagged with a radioactive tracer...
Benda's experiments involved using radioactive tracers in milk as a way of monitoring the calcium uptake of the retarded students. While ethicists have objected to the Benda tests because students were not notified of the radiation used, medical experts say the amount of radiation did not pose a health threat...
...director of clinical psychiatry at the Fernald State School for the retarded from 1946 to 1962. In 1954, he reported in the Journal of Nutrition on a study in which retarded children at the school were fed radioactive milk with their breakfast cereal to monitor their intake of calcium...
...Benda published the results of a study in which students at the school were fed radioactive milk with their breakfast cereal without their knowledge in an attempt to monitor their intake of calcium...
...letter, which was written by the school's superintendent on Fernald school stationery, asks parents to allow their children to participate in experiments in which Harvard and MIT scientists used radioactive tracers to monitor the students' intake of calcium, iron and other vitamins...