Dr.Supachai Rerks-Ngarm of the Department of Disease Control of the Thai Ministry's Public Health Department, was overall leader of the study.

VOA: standard.2009.10.20

A study by the U.S.Centers for Disease Control reports that medical care and the loss of worker productivity averages about $3,000 annually for each smoker.

VOA: standard.2010.02.18

The study focuses on leptin, a hormone that helps control appetite.

VOA: standard.2009.12.30