Bayer AM, Danysh HE, Garvich M, Gonzalvez G, Checkley W, Alvarez M, Gilman RH. An unforgettable event: a qualitative study of the 1997-98 El Niño in northern Peru. Disasters. 2014 Apr;38(2):351-74. doi: 10.1111/disa.12046
Arnold LM, Williams DA, Hudson JI, Martin SA, Clauw DJ, Crofford LJ, Wang F, Emir B, Lai C, Zablocki R, Mease PJ. Development of responder definitions for fibromyalgia clinical trials. Arthritis Rheum. 2012 Mar 1;64(3):885-94.
Keeenan AM, McKenna SP, Doward LC, Conaghan PC, Emery P, Tennant A. OAQoL: the development and validation of a needs-based quality of life instrument for osteoarthritis. Arthritis Rheum. 2008 Jun 1;59(6):841-8.