Althage M, Heinrich TM, Miliotis T, Bogstedt A, Ma L, Gautreaux MD, Hicks PJ, Palmer ND, MacPhee I, Hartleib-Geschwindner J, Greasley PJ, Freedman BI. Urine APOL1 Isoforms Reflect Plasma-Derived Liver-Synthesized Proteins. J Am Soc Nephrol. 2021 Oct; 32(10):2442-2444.