Differing Sensitivity of Antibodies Against IgG1 Explains the Discrepancy in the Detection of IgG1: A Validation Study - Satoru Kudose; Nicholas J. Steers; Pouneh Dokouhaki; Pingchuan Zhang; Mary E. Fidler; Nicole Andeen; Vanderlene Kung; Becky M. Ma; Sharvari S. Pathak; Yuancheng Wang; Alyssa B. Beatty; Vighnesh Walavalkar; et al. (Kidney International Reports)