OBSCN and familial dilated cardiomyopathy: The reason for this is that mutations in the OBSCN gene have not been recognised as potentially disease-causing until recently, and are not included in current large-scale genetic surveys, For instance, Alfares et al. (2015) studied 2912 HCM cases, Ware et al. (2016) studied 172 peripartum cardiomyopathy cases and Haas et al. (2014) studied 639 DCM cases.