Telephone interviews can be used to collect follow-up data subsequent to no response to postal questionnaires in clinical trials

Geahča maid

• Telephone interviews can be used to collect follow-up data subsequent to no response to postal questionnaires in clinical trials.
  Dahkki: Lall, R, et al.
  Almmustuhtton: (2012)
• Response and non-response to postal questionnaire follow-up in a clinical trial--a qualitative study of the patient's perspective.
  Dahkki: Nakash, R, et al.
  Almmustuhtton: (2008)
• Maximising response to postal questionnaires – A systematic review of randomised trials in health research
  Dahkki: Nakash, R, et al.
  Almmustuhtton: (2006)
• Maximising response to postal questionnaires – A systematic review of randomised trials in health research
  Dahkki: Gates Simon, et al.
  Almmustuhtton: (2006-02-01)
• A randomized trial of mailed questionnaires versus telephone interviews: Response patterns in a survey
  Dahkki: Olsen Ole, et al.
  Almmustuhtton: (2007-06-01)