By Svoen Normund   Schei Edvin   in Scandinavian Journal of Primary Health Care

ISSN:0281-3432|17|1|54-58

Informa Healthcare‎(1999)‎

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By Walseth Liv Tveit   Abildsnes Eirik   Schei Edvin   in Scandinavian Journal of Primary Health Care

ISSN:0281-3432|29|2|99-103

Informa Healthcare‎(2011)‎

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