Pilot study NFP 1A: how many study participants can be found again after 12 years?

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Bibliographic Details
Published in:Sozial- und Präventivmedizin Vol. 40; no. 5; p. 330
Main Authors: Pfiffner, D, Gutzwiller, F
Format: Journal Article
Language:German
Published: Switzerland 1995
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ISSN:0303-8408