QUDS CITY, APRIL 4, SPA -- DOCTORS POSTPONED ISRAELI PRIME MINISTER ARIEL SHARON'S SCHEDULED SURGERY ON TUESDAY BECAUSE OF A RESPIRATORY INFECTION, A HADASSAH HOSPITAL SPOKESMAN SAID. THE SURGERY WAS TO RESTORE A PART OF SHARON'S SKULL THAT WAS REMOVED IN PREVIOUS OPERATIONS AFTER HIS DEBILITATING STROKE. THE OPERATION WILL TAKE PLACE AFTER THE INFECTION IS HALTED, CNN REPORTED. SHARON, 77, HAS BEEN IN A COMA SINCE SUFFERING A MASSIVE STROKE JAN. 4. HE HAS HAD SEVERAL SURGERIES SINCE HE ENTERED THE HOSPITAL. ON FEB. 11, DOCTORS HAD TO REMOVE NEARLY 20 INCHES OF HIS LARGE INTESTINE AFTER IT WAS FOUND TO HAVE BECOME GANGRENOUS BECAUSE OF A LACK OF BLOOD FLOW. HE HAD A FEEDING TUBE INSERTED IN HIS STOMACH ON FEB. 1.