Article Information
vol. 34 no. 2 521
PubMed
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History
- Published online July 31, 2009.
Copyright & Usage
© ERS Journals Ltd
Author Information
- M. M. van der Eerden 1 and
- W. G. Boersma 2
- 1Erasmus Medical Centre, Rotterdam, and 2Medical Centre Alkmaar, Alkmaar, The Netherlands.
- M. M. van der Eerden, Medical Centre Alkmaar, Wilhelminalaan 12, Alkmaar 1815 JD, The Netherlands. E-mail: mvaneerden{at}yahoo.com