RT Journal Article SR Electronic T1 Process evaluation in complex public health intervention studies: the need for guidance JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP 101 OP 102 DO 10.1136/jech-2013-202869 VO 68 IS 2 A1 Graham Moore A1 Suzanne Audrey A1 Mary Barker A1 Lyndal Bond A1 Chris Bonell A1 Cyrus Cooper A1 Wendy Hardeman A1 Laurence Moore A1 Alicia O'Cathain A1 Tannaze Tinati A1 Danny Wight A1 Janis Baird YR 2014 UL http://jech.bmj.com/content/68/2/101.abstract AB