Source:
Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke [Tidsskr Nor Laegeforen] 2001 Feb 10; Vol. 121 (4), pp. 431-3.Publisher: Norske Laegeforening Country of Publication: Norway NLM ID: 0413423 Publication Model: Print Cited Medium: Print ISSN: 0029-2001