AFTER A NEARLY FOUR-HOUR PHYSICAL EXAM PRESIDENT GEORGE W0 FBUSH)S DOCTORS ON TUESDAY PRONOUNCED HIM IN GOOD HEALTH AND FIT FOR DUTY? THE WHITE HOUSE SAID AP REPORTED0 BUSH INDICATED HE WAS HAPPY ABOUT THE RESULTS OF HIS PHYSICAL ? EXCEPT FOR THE WEIGHT GAIN IT SHOWED0 THE NEARLY 6 FOOT /183 METERS/ PRESIDENT HAS GAINED ABOUT 5 POUNDS /227 KILOGRAMS/SINCE LAST YEAR)S PHYSICAL WHITE HOUSE PRESS SECRETARY TONY SNOW SAID0 THE EXAM WAS AT THE NATIONAL NAVAL MEDICAL CENTER IN SUBURBAN WASHINGTON0 THE DOCTORS ONCE AGAIN HAVE FOUND THE PRESIDENT FIT FOR DUTY AND HAVE EVERY REASON TO EXPECT THAT HE WILL REMAIN SO FOR THE DURATION OF HIS PRESIDENCY? SNOW SAID0