Prime Minister Shinzo Abe on Monday revisited a hospital in Tokyo where he had received what an aide called "a regular health checkup" a week earlier amid speculation about his health.More on this story hereAbe said he was briefed on the checkup results at Keio University Hospital and underwent follow-up tests. "I will do my best at work while taking every precaution to ensure my health," he told reporters after arriving at his office. The four-hour hospital visit came as Abe became Japan's longest-serving prime minister Monday in terms of consecutive days in office.Speculation about the 6…READ FULL ARTICLE