Article Text

Download PDFPDF

An unusual aspiration.

Statistics from Altmetric.com

PDF extract preview

This is a PDF-only article. The first page of the PDF of this article appears above.

Supplementary materials

  • There is an error in the name of the second author of this paper. The second author should read Drent M, and not Drent D.

    Request Permissions

    If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.