Sir, - Operations cancelled - no blood. Isn't it an outrage? Again and again and again.In O'Connell Street we now have a state-of-the-art medical centre opening seven days a week, a business venture.In Westmoreland Street we now have the Blood Bank opening Monday to Thursday, 9.30 to 8.30. A majority of people available to give blood in their own time would prefer Friday, Saturday and Sunday opening hours.Would the Galway hospital patients awaiting operations vote for a dedicated room for blood donors Friday to Sunday in their hospital? - Yours, etc.,Ronnie Walsh, Barnhill Park, Dalkey, Co Dublin.