Transfusion Medicine and Apheresis Unit;
Haematology and Haemotherapy Regional Service;
"Miguel Servet" University Hospital;
Zaragoza 50009;
Spain;
Gastroenterology Unit;
University Clinical Hospital and Biomedical Investigation Center at Digestive and Hepatic Disease Network;
c/San Juan Bosco 15;
Zaragoza 50009;
Spain;
Transfusion Medicine;
School of Medicine;
University of Málaga;
Málaga 29071;
Spain;