Feltner D, Hill C, Lenderking W, Williams VS, Morlock R. Development of a patient-reported assessment to identify placebo responders in a generalized anxiety disorder trial. J Psychiatr Res. 2009 Oct;43(15):1224-30.
Morlock RJ, Williams VS, Cappelleri JC, Harness J, Fehnel SE, Endicott J, Feltner D. Development and evaluation of the Daily Assessment of Symptoms – Anxiety (DAS-A) Scale to evaluate onset of symptom relief in patients with generalized anxiety disorder. J Psychiatr Res. 2008 Oct;42(12):1024-36.
Vickers AD, Rotherham ID, Rose J. Vegetation succession and colonisation rates at the forest edge under different environmental conditions. Ann Appl Biol. 2000;58:1-8.
Vickers AD, Rotherham ID. The response of Bluebell (Hyacinthoides non-scripta) to seasonal differences between years and woodland management. Ann Appl Biol. 2000;58:351-6.