title: [The frequency of open heart operations in the Netherlands, compared with the state in other countries].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001315:Australia; D006348:Cardiac Surgical Procedures; D002648:Child; D002675:Child, Preschool; D005260:Female; D005860:Germany, West; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D009426:Netherlands; D009656:North America; D006113:United Kingdom
vernacular_title: De frequentie van open-hartoperaties in Nederland, vergeleken met de situatie in enkele andere landen.