Fig 1: Validation of CD57+ NK2 population.a. Bar plot of double positive cells (CD57+CD49a+) percent out of CD57+ cells per patient. b. Representative examples of double positive (CD57+CD49a+, left) and single positive (CD57+CD49a-, right) staining using dual color IHC for CD57 and CD49a on decidua samples, 595 cells in total. Representative images of n = 574 double positive cells and n = 21 single positive cells. Scale bar, 20 µm. c. Pairwise enrichment between NK2 cells and arteries. Left: mean enrichment per image by δ, n = 209 images. Red line – fitted linear regression, regression p-value. Right: Violin plot of NK2-artery enrichment scores by early (1 ≤ δ < 3) and late (3 ≤ δ < 5) remodeling stage. p-value Kruskal-Wallis. Early: n = 108, min = −3.6, max= 7.07, center = 0.13; Late: n = 15, min = −1.77, max=0.41, center = −0.45. Source Data