Reuters) - Secretary of State Hillary Clinton briefly left New York-Presbyterian hospital on Wednesday, only to return about 15 minutes later, the New York Daily News reported. The State Department declined to comment on where Clinton may have gone or the status of her hospital stay. She was admitted for treatment of a blood clot in a vein behind her right ear. Reporters witnessed Clinton leaving the hospital with her husband, former President Bill Clinton, and daughter, Chelsea, and an aide. They drove away with a security detail and a man wearing a white coat and a stethoscope. She returned...