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Irvine, L., I. K. Crombie, R. A. Clark, P. W. Slane, K. E. Goodman, C. Feyerabend, ja J. I. Cater. What Determines Levels of Passive Smoking in Children With Asthma? BMJ Group, 1997.

Irvine, L., et al. What Determines Levels of Passive Smoking in Children With Asthma? BMJ Group, 1997.