On the day he became Japan's longest-serving prime minister in terms of consecutive days in office, Prime Minister Shinzo Abe revisited Monday a Tokyo hospital where a week ago he underwent what an aide called "a regular health checkup."Abe, 65, said he went to Keio University Hospital to be informed about his previous checkup results and undergo additional tests, a government official said.Reiterating his determination to keep working as the nation's leader amid speculation about his health, he also thanked the Japanese people for giving him strong support in elections in remarks to report…READ FULL ARTICLE