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.
Carson R, Williams V, Nelson L, MacDougall J, Johnston J. Psychometric evaluation of patient-reported outcome measures for assessing IBS-c symptom severity and global change: results from a phase 2b study of linaclotide. Am J Gastroenterol. 2009 Oct 1;104:1113.
Williams VS, DeMuro-Mercon CJ, Reeve BB, Erder MH. Implementing FDA PRO Guidelines: content validity and good measurement practices — what is the right balance? Presented at the International Society for Pharmacoeconomics and Outcomes Research 14th Annual International Meeting; May 15, 2009. Orlando, FL.
Harness J, Mamolo C, DeMuro-Mercon CJ, Fehnel SE, Hill C, Thompson M, Olsen EA, Price VH, Williams VS. The women's hair growth questionnaire: development and validation of a patient-reported measure for treatment efficacy in alopecia. Poster presented at the 2009 American Academy of Dermatology; March 2009.
Macdougall JE, Erder MH, Nelson LM, Price MA, Williams VS, Johnston JM. Correlational structure of IBS-C PRO symptom measures determined by exploratory factor analysis an relationship to global PRO assessments: results from a phase 2 trial of linaclotide in IBS-C. Poster presented at the 2009 NGM Scientific Meeting; 2009.