MYH14 and hydrops fetalis: In the chronological grouping, myofibrils (GO:0030016), the myosin complex (GO:0016459), muscle contraction (GO:0006936), muscle system process (GO:0003012), sarcomere organisation (GO:0045214), and contractile fibres (GO:0043292) were significantly enriched, suggesting persistent roles in HF development (Figure 4a).