Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Resumo das conclusões do estudo entre grupos de risco. A: Alto risco cirúrgico; B: Risco cirúrgico intermediário; C: Baixo risco cirúrgico. NYHA: New York Heart Association.
