Research graph
References from Effect of paper quality on the response rate to a postal survey: A randomised controlled trial. [ISRCTN32032031]. Local targets link to admitted publications; unresolved targets remain external evidence.
10.1136/bmj.313.7059.732
10.1136/bmj.313.7059.732 · 1996 · External reference
10.1093/oxfordjournals.aje.a115309
10.1093/oxfordjournals.aje.a115309 · 1989 · External reference
10.1136/jech.55.8.595
10.1136/jech.55.8.595 · 2001 · External reference
10.1080/791201836
10.1080/791201836 · 2001 · External reference
10.1016/s0140-6736(00)04337-3
10.1016/s0140-6736(00)04337-3 · 2001 · External reference
10.1086/269376
10.1086/269376 · 1993 · External reference
10.1086/269125
10.1086/269125 · 1988 · External reference
10.2307/3151410
10.2307/3151410 · 1983 · External reference
10.1086/269284
10.1086/269284 · 1993 · External reference
10.1086/269031
10.1086/269031 · 1987 · External reference
