After notification from the author, and with editiorial agreement, the Publisher acknowledges here the following corrections:
On page 436, the affiliation of Olaf G. Aasland is given as the "Department of Health Management and Health Economics, University of Oslo, Norway". The correct affiliation is in fact the "Institute of Health Management and Health Economics, University of Oslo, Norway".
On page 436, line 15 of the Introduction, reference is made to the following url: http://www.lægeforeningen.no/index.gan?id=1442.
The correct url reference is as follows: http://www.legeforeningen.no/index.gan?id=1442.