https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 Cost-effectiveness of follow-up contact for a postal survey: a randomised controlled trial https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:10918 Wed 11 Apr 2018 10:32:32 AEST ]]> Telephone follow-up was more expensive but more efficient than postal in a national stroke registry https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:18973 Sat 24 Mar 2018 07:58:53 AEDT ]]> Dyspepsia in the community: value of a community-based mailed survey to identify potential participants for a randomized clinical trial https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:27822 Sat 24 Mar 2018 07:31:10 AEDT ]]>