By Steinbruchel D.A.   Hasenkam J.M.   Nygaard H.   Riis C.M.E.   Sievers H.H.   in European Journal of Cardio-Thoracic Surgery

ISSN:1010-7940|12|6|873-875

Elsevier‎(1997)‎

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By Kleine P.   Perthel M.   Hasenkam J.M.   Nygaard H.   Hansen S.B.   Laas J.   in European Journal of Cardio-Thoracic Surgery

ISSN:1010-7940|17|1|20-24

Elsevier‎(2000)‎

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By Saevareid H. I.   Thygesen E.   Nygaard H. A.   Lindstrom T. C.   in Aging and Mental Health

ISSN:1364-6915|11|6|658-667

Routledge Ltd‎(2007)‎

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By Bjørneboe O.   Moen F.   Nygaard H.   Haavik T. K.   Svensson B.   in Scandinavian Journal of Rheumatology

ISSN:0300-9742|27|1|26-31

Informa Healthcare‎(1998)‎

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