| Closed heart valvotomy of pulmonary valve (procedure) | | Closed heart valvotomy of pulmonary valve | | Brock operation
Brock operation for pulmonary valvotomy
Closed pulmonary commissurotomy
Closed pulmonary valvotomy
| | gesloten valvotomie van pulmonalisklep | | gesloten incisie van valva trunci pulmonalis
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