group self_reported_improvement treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment yes treatment no treatment no treatment no treatment no treatment no treatment no treatment no treatment no treatment no treatment no treatment no treatment no treatment no treatment no treatment no treatment no treatment no treatment no treatment no control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control yes control no control no control no control no control no control no control no control no control no control no control no control no control no control no control no control no