They used a system of measurement called the Body Mass Index to define words like obese and overweight.

VOA: special.2009.07.21

Professor Keyak says the measurement is much greater than monthly reductions in bone mineral density of point four percent and one point eight percent.

VOA: special.2009.03.10

"The first stage, which is kind of concrete, they try to do something where there is some measurement involved.

VOA: standard.2010.08.10

"When we plotted the circuits in the brain against their childhood lead blood lead levels, we found that those with a higher blood lead measurement had less activity in the part of the brain normally left to do the attention tasks,"

VOA: standard.2009.12.19