PLA2R1 and focal segmental glomerulosclerosis: We first analyzed all patients with CKD (young and adult patients with AS as well as patients with FSGS and MN) by PCA, which partitioned the glomeruli into distinct disease-specific clusters, except for the patient with PLA2R+ MN (no. 7), whose glomeruli clustered with the nondiseased glomeruli (Supplemental Figure 3).