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Tidsskr Nor Laegeforen
; 136(7): 598-9, 2016 Apr 19.
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| MEDLINE
| ID: mdl-27094659
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Tidsskr Nor Laegeforen
; 135(15): 1342-3, 2015 Aug 25.
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in Norwegian
| MEDLINE
| ID: mdl-26315231