Retrieves the permissions to access patients information for a role.
roleName
A System.String specifying the role name to get its patients access permissions. This value can be null to retrieve permissions assigned for all roles.
patientId
The patient ID which permissions are to be retrieved. This value can be null to retrieve permissions for all patients..
extraData
User custom data.
A list of Leadtools.Dicom.Services.DataTypes.RolesPatientsPermission objects specifying the patients permissions for the specified role(s).