<qa>  What is the new registry arm in which 1,500 patients are consecutively recruited at 72 medical institutionsThe present study consisted of the following two study arms: the 3-month DAPT arm, a new registry arm in which 1,500 patients are consecutively recruite at 72 medical institutions; and the Longer DAPT arm, a historical control arm that consisted of 1,123 patients at 58 medical institutions. 