Department;
of;
Intemal;
Medicine,;
University;
Hospital;
"12;
de;
Octubre",;
Avenue;
Cordoba,;
s,;
Universidad;
Complutense,;
Madrid;
28041,;
Spain;
Hospital;
Tumor;
Registry,;
University;
Hospital;
"12;
de;
Octubre",;
Avenue;
Cordoba,;
s,;
Universidad;
Complutense,;
Madrid;
28041,;
Spain;