ESCANABA — The U.P. Regional Blood Center is experiencing a critical need for A negative, B negative, O negative and O positive blood types. The U.P. Regional Blood Center has collection sites in Marquette, Hancock and Escanaba and is the primary supplier of blood to 13 U.P. hospitals. For hours and scheduling call Marquette at 906-449-1450, Hancock at 906-483-1392, and Escanaba at 906-786-8420.