Published on in Vol 5 , No 2 (2016) :Apr-Jun

1 Kaiser Permanente Southern California , Department of Research & Evaluation , Pasadena , CA , US
2 Kaiser Permanente Hawaii , Center for Health Research , Honolulu , HI , US
3 Group Health Research Institute , Seattle , WA , US
4 Kaiser Permanente Northwest , Center for Health Research , Portland , OR , US
5 Kaiser Permanente Northern California , Division of Research , Oakland , CA , US
6 Kaiser Permanente Colorado , Institute for Health Research , Denver , CO , US
7 HealthPartners Institute , Bloomington , MN , US
8 Mid-Atlantic Permanente Research Institute , Rockville , MD , US
9 Kaiser Permanente Georgia , Atlanta , GA , US
10 Wake Forest Baptist Medical Center , Department of Epidemiology & Prevention , Winston-Salem , NC , US
*all authors contributed equally