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*Susan D. Brown, PhD^1,2, Jenna L. Ritchie, BA¹, Ai-Lin Tsai, MS¹, Mara Greenberg, MD³, Charles P. Quesenberry, PhD¹, Assiamira Ferrara, MD, PhD¹
1 Division of Research, Kaiser Permanente Northern California
2 Department of Internal Medicine, University of California, Davis
3 Regional Perinatal Service Center, Kaiser Permanente Northern California