%0 Journal Article %T Susceptibility to childhood onset rheumatoid arthritis: investigation of a weighted genetic risk score that integrates cumulative effects of five genetic risk variants %A Prahalad Sampath %A Brown Milton %A Thompson Susan D %A Zwick Michael %J Pediatric Rheumatology %D 2012 %I BioMed Central %R 10.1186/1546-0096-10-s1-a116 %U http://www.ped-rheum.com/content/10/S1/A116