Source:
Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke [Tidsskr Nor Laegeforen] 1969 May 01; Vol. 89 (9), pp. 640-1.Publisher: Norske Laegeforening Country of Publication: Norway NLM ID: 0413423 Publication Model: Print Cited Medium: Print ISSN: 0029-2001