1. Long-term results of surgical valvuloplasty for congenital valvar aortic stenosis in children 
Claude C Chartrand, MD, Enrique Saro-Servando, MD, Jitka Suzanne Vobecky, MD 
The Annals of Thoracic Surgery 
Volume 68, Issue 4, Pages (October 1999)
DOI: /S (99)

2. Fig 1
Gradients before and after the first valvuloplasty. The results are expressed as mean ± standard deviation.
The Annals of Thoracic Surgery  , DOI: ( /S (99) )

3. Fig 2
Actuarial survival after initial valvuloplasty (67 patients). The vertical bar indicates 70% confidence limits. The numbers in parenthesis are the numbers of patients for each interval.
The Annals of Thoracic Surgery  , DOI: ( /S (99) )

4. Fig 3
Gradients before and after the second valvuloplasty. The results are expressed as mean ± standard deviation.
The Annals of Thoracic Surgery  , DOI: ( /S (99) )

5. Fig 4
Actuarial freedom from aortic valve replacement and reoperation after initial valvuloplasty. The vertical bar indicates 70% confidence limits.
The Annals of Thoracic Surgery  , DOI: ( /S (99) )