Figure 1.
The 6‐minute walk distance increased significantly in all groups after 12‐weeks of sildenafil therapy (*P < 0.01). Abbreviations: ASD, atrial septal defects; PDA, patent ductus arteriosus; VSD, ventricular septal defects.
The 6‐minute walk distance increased significantly in all groups after 12‐weeks of sildenafil therapy (*P < 0.01). Abbreviations: ASD, atrial septal defects; PDA, patent ductus arteriosus; VSD, ventricular septal defects.