Hello Ladies, today is my pre - assesment for surgery on 3rd of Oct. while I'm talking to the nurse 1 woman came she as for blood donation,studying for this kind of disease UCL/UCLH Biobank for Studying Health and Disease (based at Pathology-Rockefeller building and UCL Cancer Institute) I sign up I gave 5 tubes of blood today, and another blood test when I'am in the operating room & they will get smear also while I'm sleeping and saliva,urine, I read the copy of the letter they don't inform me what the result,she said its anonymous, can someone give me advice if I will do it or not?