CRIPTO3 and atrial fibrillation: Furthermore, ten morphospecies (CR3, CU2, CU3_9, CU8, ND1, PTIL1, ST4, ST5, ST6) exhibited significantly reduced daily abundances in female AF compared to male AF (Kruskal–Wallis P < 0.05; Post hoc Z-statistic > 0, see values in Table 1).