SDR16C5 and hydrops fetalis: A Kruskal–Wallis test indicated that both RDHE2 (p = 0.050) and RDHE2S (p = 0.042) varied across the HF cycle, peaking at PD30 with a subsequent decrease at PD40 for RDHE2 and RDHE2S by 64% for 84%, respectively (Fig. 3e and Supplementary Table 1).