Phase One: Phase One was conducted as part of a PhD study.
Patients were recruited from three London hospitals. At one site the
researcher (CG) attended weekly clinics. Eligible patients were
given information by the consultant and referred to CG for further
information. At the two other sites, the same consultant identified
eligible patients and gave information about the study. They were
then given a letter of invitation and study information, and invited
to call the research office or return the reply slip.