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Sozial- Und Praventivmedizin|January 1, 1987
[Cancer mortality according to occupation]R Gass
Swiss Surgery = Schweizer Chirurgie = Chirurgie Suisse = Chirurgia Svizzera|November 5, 1999
[Benign prostatic hyperplasia--dos the frequency of operations depend on insurance status?]R Gass
Sozial- Und Praventivmedizin|September 1, 1982
[Cancer mortality, according to social indicators]R Gass
Sozial- Und Praventivmedizin|July 1, 1976
[Regional variation in mortality from ischemic heart disease in Switzerland]R Gass, E Wieltschnig
Sozial- Und Praventivmedizin|January 1, 1993
[Occupation-specific indicators for strategic prevention in risk groups]R Gass, M Bopp
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