A Radio Frequency Identification Implanted in a Tooth can Communicate With the Outside World. - Hiroshi Ishihata; Takeshi Tomoe; Kotaroh Takei; Tadahiko Hirano; Kazuo Yoshida; Shigeru Shoji; Hidetoshi Shimauchi; Hiroshi Horiuchi (IEEE Trans. Inf. Technol. Biomed., 2007)