By Perrig-Chiello P.   Perrig W. J.   Stahelin H. B.   in Psychology, Health and Medicine

ISSN:1465-3966|4|1|83-94

Routledge Ltd‎(1999)‎

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By Perrig-Chiello P.   Perrig W. J.   Stahelin H. B.   in Aging and Mental Health

ISSN:1364-6915|4|2|130-135

Routledge Ltd‎(2000)‎

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