DOI:
10.1055/s-00000066
RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren
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References
Thomas DC.
Invited commentary: is it time to retire the “pack-years” variable?.
Maybe not! American Journal of Epidemiology 2014;
179: 299-302
DOI: 10.1093/aje/kwt274.
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