TY - JOUR AU - Mackay M AU - Dall'Era M AU - Fishbein J AU - Kalunian K AU - Lesser M AU - Sanchez-Guerrero J AU - Levy D AU - Silverman E AU - Petri M AU - Arriens C BT - Arthritis and Rheumatology DO - 10.1002/art.40724 LA - eng PY - 2019 T2 - Arthritis and Rheumatology TI - Establishing Surrogate Kidney End Points for Lupus Nephritis Clinical Trials: Development and Validation of a Novel Approach to Predict Future Kidney Outcomes ER -