619 Pregnancy outcomes among patients with lupus and their relatives: a population based cohort study by Diane L Kamen, Jessica A English, Katie Kirchoff

623 Risk Factors for Herpes Zoster among Patients with Systemic Lupus Erythematosus by Jim C Oates, Diane L Kamen, Caroline Spitznagel, Fedelis Mutiso

Development and implementation of a virtual Lupus Patient Education Event during the COVID-19 pandemic by Diane L Kamen, Mithu Maheswaranathan, Jessica A English, Melissa A Cunningham

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Systemic lupus erythematosus and vitamin D deficiency are associated with shorter telomere length among African Americans: a case-control study. by Brett M Hoffecker, Laura M Raffield, Diane L Kamen, Tamara K Nowling

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1103 Perfluoroalkyl substances and community vulnerability: associations with lupus-related autoantibodies and disease by Jim C Oates, Diane L Kamen, Dulaney A Wilson, John L Pearce, Emily L Vara

Effect of vitamin D on serum markers of bone turnover in SLE in a randomised controlled trial by Cynthia Aranow, Betty Diamond, Sara K. Tedeschi, Diane L. Kamen, Meryl LeBoff, Karen H. Costenbader

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504 Hair chemical use and systemic lupus erythematosus: a case-control study by Trevor D Faith, Jim C Oates, Diane L Kamen, Gary S Gilkeson, Jessica A English, Dulaney A Wilson

614 Racial discrimination among systemic lupus erythematosus (SLE) and control participants in the Social Factors, Epigenomics and Lupus in African American Women (SELA) Study: pre... by Diane L Kamen, S Sam Lim, Paula S Ramos, Bethany J Wolf, L Quinnette King, Lori Ann Ueberroth, Jessica T Browder

607 Differences in social support among African American Women with and without systemic lupus erythematosus (SLE) by Edith M Williams, Diane L Kamen, Sarah Smith, Paula S Ramos, Bethany J Wolf, L Quinnette King, Lori Ann Ueberroth, Chloe Mattila

Successes, challenges and lessons learned: Community-engaged research with South Carolina's Gullah population by Ida J. Spruill, Renata Serricchio Leite, Jyotika K. Fernandes, Diane L. Kamen, Marvella E. Ford, Carolyn Jenkins, Kelly J. Hunt, Jeannette O. Andrews

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Protocol for virtual physical examination in an observational, longitudinal study evaluating virtual outcome measures in SLE by Cynthia Aranow, Maria Dall'Era, Meggan Mackay, Diane L Kamen, Wei Tang, Mimi Y Kim, Cristina Arriens, Anca D Askanase, Leila Khalili, Julia Barasch

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The impact of vitamin D on dendritic cell function in patients with systemic lupus erythematosus. by Ilan Ben-Zvi, Cynthia Aranow, Meggan Mackay, Anfisa Stanevsky, Diane L Kamen, L Manuela Marinescu, Christopher E Collins, Gary S Gilkeson, Betty Diamond, John A Hardin

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Cell of origin in diffuse large B-cell lymphoma in systemic lupus erythematosus: molecular and clinical factors associated with survival by Rosalind Ramsey-Goldman, Diane L Kamen, Eva Baecklund, Basile Tessier-Cloutier, David DW Twa, Randy Gascoyne, Nathalie A Johnson, Carin Backlin, Ann E Clarke, Jennifer LF Lee, Pedro Farinha, Sasha Bernatsky

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Vitamin d deficiency in a multiethnic healthy control cohort and altered immune response in vitamin D deficient European-American healthy controls. by Lauren L Ritterhouse, Rufei Lu, Hemangi B Shah, Julie M Robertson, Dustin A Fife, Holden T Maecker, Hongwu Du, Charles G Fathman, Eliza F Chakravarty, R Hal Scofield, Diane L Kamen, Joel M Guthridge, Judith A James

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Rigorous Plasma Microbiome Analysis Method Enables Disease Association Discovery in Clinic by Zhenwu Luo, Alexander V. Alekseyenko, Alexander V. Alekseyenko, Elizabeth Ogunrinde, Min Li, Quan-Zhen Li, Lei Huang, Betty P. Tsao, Diane L. Kamen, Jim C. Oates, Jim C. Oates, Zihai Li, Gary S. Gilkeson, Gary S. Gilkeson, Wei Jiang, Wei Jiang

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Social Factors, Epigenomics and Lupus in African American Women (SELA) Study: protocol for an observational mechanistic study examining the interplay of multiple individual and soc... by Edith M Williams, Diane L Kamen, S Sam Lim, Carl D Langefeld, Timothy D Howard, Gregory A Hawkins, Emily L Vara, Paula S Ramos, Bethany J Wolf, Queen Quet, Lee H Moultrie, L Quinnette King, Ivan D Molano, Stephanie L Bray, Lori Ann Ueberroth

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Pre-Clinical Autoimmunity in Lupus Relatives: Self-Reported Questionnaires and Immune Dysregulation Distinguish Relatives Who Develop Incomplete or Classified Lupus From Clinically... by Melissa E. Munroe, Kendra A. Young, Joel M. Guthridge, Joel M. Guthridge, Diane L. Kamen, Gary S. Gilkeson, Michael H. Weisman, Mariko L. Ishimori, Daniel J. Wallace, David R. Karp, John B. Harley, Jill M. Norris, Judith A. James, Judith A. James, Judith A. James

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902 Loss-of-function variants in SAT1 cause X-linked Childhood-onset Systemic Lupus Erythematosus by Jim C Oates, Qing Sun, Joel M Guthridge, Judith A James, Lei Wang, Diane L Kamen, Fang Wang, Miaojia Zhang, Gary S Gilkeson, Deborah K McCurdy, Lingxiao Xu, Wenfeng Tan, Jian Zhao, Ting Liu, Bevra H Hahn, Betty P Tsao, R Hal Scofield, Yun Deng, Prithvi Raj, Edward K Wakeland, Linyu Geng, Xue Xu, Yunjuan Wu, Jingfeng Zhu, Alexander Awgulewitsch

801 Factors associated with SLE flares after HCQ taper, discontinuation or maintenance in the SLICC inception cohort: lower education linked with higher flare risk by Joan T Merrill, David A Isenberg, Daniel J Wallace, Susan Manzi, Ian Bruce, Rosalind Ramsey-Goldman, Anca Askanase, Guillermo Ruiz-Irastorza, Ellen M Ginzler, Graciela S Alarcón, John G Hanly, Murray B Urowitz, Mary Anne Dooley, Paul R Fortin, Dafna D Gladman, Kristján Steinsson, Munther A Khamashta, Ola Nived, Andreas Jönsen, Manuel Ramos-Casals, Sam Lim, Diane L Kamen, Christine A Peschken, Jorge Sanchez-Guerrero, Ann E Clarke, Sasha Bernatsky, Kenneth C Kalunian, Ronald van Vollenhoven, Asad Zoma, Celline C Almeida-Brasil

603 Remission and low disease activity are associated with lower health care costs in an international inception cohort of patients with systemic lupus erythematosus by Joan T Merrill, Michelle Petri, David A Isenberg, Daniel J Wallace, Susan Manzi, Cynthia Aranow, Rosalind Ramsey-Goldman, Anca Askanase, Ian N Bruce, Guillermo Ruiz-Irastorza, Ellen M Ginzler, Manuel Francisco Ugarte-Gil, Bernardo A Pons-Estel, Graciela S Alarcón, John G Hanly, Murray B Urowitz, Juanita Romero-Diaz, Caroline Gordon, Sang-Cheol Bae, Anisur Rahman, Mary Anne Dooley, Paul R Fortin, Dafna D Gladman, Meggan Mackay, Andreas Jönsen, Murat Inanc, Diane L Kamen, Christine A Peschken, Søren Jacobsen, Jorge Sanchez-Guerrero, Ann E Clarke, Sasha Bernatsky, Kenneth C Kalunian, Yvan St Pierre, S Sam Lim, Megan RW Barber, Ronald FVan Vollenhoven