Cancer Facts from the National Cancer Institute. Summary and bibliography on effects of secondhand smoke. Additional publications you can send for.

Long term smokers increase their spouses' risk of developing lung cancer by more than 20%, according to a new report.

Characterizes the risk and provides a bibliography of the research literature that establishes the risk.

Summary of scientific evidence of exposure and cancer-causing effects of secondhand smoke.

Summary of Swiss study published in the American Journal of Epidemiology that studied 1300 women.

Focus is on lung cancer caused by secondhand smoke.

Over 700 references to the scientific literature. From the National Environmental Respiratory Center.

Updated February 2000 to include latest research.

Secondhand smoke may speed the growth of cancer tumors.

Secondhand smoke causes cell changes that lead to breast cancer, report US researchers. The risk of these cell changes is highest in those exposed to passive smoking during childhood, before breast tissue matures, according to the study published in the American Journal of Epidemiology.

Secondhand smoke causes diseases in cats and dogs.

The largest review to date examined 50 studies on secondhand smoke, and concludes that secondhand smoke causes cancer of the lung, uterus, cervix, liver, and kidneys.

According to recent research, secondhand smoke causes feline malignant lymphoma.

Paper in the British Medical Journal.

The World Health Organization (WHO) sets the record straight: secondhand smoke causes lung cancer in non-smokers.