The New England Journal of Medicine Downloaded from nejm.org on October 21, 2015. For personal use only. No other uses without permission. Copyright © 1990 Massachusetts Medical Society. All rights reserved.

The New England Journal of Medicine Downloaded from nejm.org on October 21, 2015. For personal use only. No other uses without permission. Copyright © 1990 Massachusetts Medical Society. All rights reserved.

The New England Journal of Medicine Downloaded from nejm.org on October 21, 2015. For personal use only. No other uses without permission. Copyright © 1990 Massachusetts Medical Society. All rights reserved.

The New England Journal of Medicine Downloaded from nejm.org on October 21, 2015. For personal use only. No other uses without permission. Copyright © 1990 Massachusetts Medical Society. All rights reserved.

The New England Journal of Medicine Downloaded from nejm.org on October 21, 2015. For personal use only. No other uses without permission. Copyright © 1990 Massachusetts Medical Society. All rights reserved.

Lung cancer and exposure to tobacco smoke in the household.

The relation between passive smoking and lung cancer is of great public health importance. Some previous studies have suggested that exposure to envir...
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