Article info

Download PDFPDF

Blue calls—time for a change?
  1. Correspondence: Dr Brown (ruth.m.brown{at}
View Full Text


Brown R, Warwick J
Blue calls—time for a change?

Publication history

  • Accepted June 19, 2000
  • First published July 1, 2001.
Online issue publication 
July 01, 2001

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.