SMG6 and hydrops fetalis: Additionally, cg16348358 in the LCK gene shared the same causal variant with HF with a posterior probability of 86.38% and rs670025 with a posterior probability of 100%, while cg19869422 in the SMG6 gene shared the same causal variant with HF with a posterior probability of 89.00% and rs12603057 with a posterior probability of 99.99%.