Authors: Marian T Hannan; Hylton B Menz; Joanne M Jordan; L Adrienne Cupples; Chia-Ho Cheng; Yi-Hsiang Hsu Journal: Arthritis Care Res (Hoboken) Date: 2013-09 Impact factor: 4.794
Authors: Michael F Westphal; Jodi L Massie; Joanna M Bronkema; Brian E Smith; Theodore J Morgan Journal: PLoS One Date: 2011-09-14 Impact factor: 3.240