Winkel et al. 14 enrolled 66 non‐referred SCD patients born in Denmark and screened for genetic variants in the eight major genes including GPD1L. One rare variant of R220H (unknown significance) was found in an infant, who also carry another rare variant of SCN5A. In China, Liu et al. 15 were also found no non‐synonymous mutations in 123 medico‐legal autopsy‐negative sudden unexplained nocturnal death syndrome cases from Southern China. Here, SCN5A is linked to Brugada syndrome.