?:authorAffiliation
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[\'Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, Calif; Department of Preventive Medicine, Keck School of Medicine of USC, Los Angeles, Calif.\', \'Department of Preventive Medicine, Keck School of Medicine of USC, Los Angeles, Calif.\', \'Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, Calif.\', \'Sonoma Technology, Petaluma, Calif.\', \'Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, Calif. Electronic address: anny.h.xiang@kp.org.\']
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