Retrieves the specified role's permissions for accessing patient information.
roleName
A System.String specifying the name of the role for which patient access permisseions is being sought. Use 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).