Authors: Jeffrey J Sacks; Leslie R Harrold; Charles G Helmick; Jerry H Gurwitz; Srinivas Emani; Robert A Yood Journal: J Rheumatol Date: 2005-02 Impact factor: 4.666
Authors: Jennifer M Bombard; Kenneth E Powell; Linda M Martin; Charles G Helmick; William H Wilson Journal: Am J Prev Med Date: 2005-04 Impact factor: 5.043