Department;
of;
Vascular;
Surgery,;
Peking;
Union;
Medical;
College;
Hospital,;
Chinese;
Academy;
of;
Medical;
Sciences;
&;
Peking;
Union;
Medical;
College,;
Beijing;
100730,;
China;
Department;
of;
General;
Surgery,;
Central;
Hospital;
Conde;
S.;
Januario;
of;
Macao,;
Caixa;
Postal,;
3002,;
Macau;