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Streppel, Martinette T., Hendriek C. Boshuizen, Marga C. Ocké, Frans J. Kok, ja Daan Kromhout. Mortality and Life Expectancy in Relation to Long‐term Cigarette, Cigar and Pipe Smoking: The Zutphen Study. BMJ Group, 2007.

Streppel, Martinette T., et al. Mortality and Life Expectancy in Relation to Long‐term Cigarette, Cigar and Pipe Smoking: The Zutphen Study. BMJ Group, 2007.