RT Journal Article SR Electronic T1 Impact of an electronic, computer-delivered questionnaire, with or without postal reminders, on survey response rate in primary care JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP 663 OP 664 DO 10.1136/jech-2011-200884 VO 66 IS 7 A1 Caroline Burgess A1 Jennifer Nicholas A1 Martin Gulliford YR 2012 UL http://jech.bmj.com/content/66/7/663.abstract AB