TNNI3 and cardiomyopathy, familial restrictive, 1: There are also two cases in the ARVC/RCM group that were identified with P/LP variants, including one in MYH7 (MYH7 c.1357C>G) and another in TNNI3 (c.574C>T), as well as one VUS in the SCN5A gene.