RT Journal Article SR Electronic T1 Pragmatic, formative process evaluations of complex interventions and why we need more of them JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP 925 OP 926 DO 10.1136/jech-2014-204806 VO 69 IS 10 A1 Rhiannon Evans A1 Jonathan Scourfield A1 Simon Murphy YR 2015 UL http://jech.bmj.com/content/69/10/925.abstract AB