RT Journal Article SR Electronic T1 SLE: reconciling heterogeneity JF Lupus Science & Medicine FD Lupus Foundation of America SP e000280 DO 10.1136/lupus-2018-000280 VO 6 IS 1 A1 Michael D Lockshin A1 Medha Barbhaiya A1 Peter Izmirly A1 Jill P Buyon A1 Mary K Crow YR 2019 UL http://lupus.bmj.com/content/6/1/e000280.abstract AB